{"id":545907,"date":"2021-10-05T08:04:10","date_gmt":"2021-10-05T08:04:10","guid":{"rendered":"https:\/\/www.indcareer.com\/schools\/?p=545907"},"modified":"2021-10-05T10:43:16","modified_gmt":"2021-10-05T10:43:16","slug":"rd-sharma-solutions-for-class-9-maths-chapter-25-probability","status":"publish","type":"post","link":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/","title":{"rendered":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability"},"content":{"rendered":"\n<p><meta http-equiv=\"content-type\" content=\"text\/html; charset=utf-8\">Class 9: Maths Chapter 25 solutions. Complete Class 9 Maths Chapter 25 Notes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-rd-sharma-solutions-for-class-9-maths-chapter-25-probability\">RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability<\/h2>\n\n\n\n<p><meta http-equiv=\"content-type\" content=\"text\/html; charset=utf-8\">RD Sharma 9th Maths Chapter 25, Class 9 Maths Chapter 25 solutions<\/p>\n\n\n\n<p><strong><u>Exercise 25.1 Page No: 25.13<\/u><\/strong><\/p>\n\n\n\n<p><strong>Question 1: A coin is tossed 1000 times with the following sequence:<\/strong><\/p>\n\n\n\n<p><strong>Head: 455, Tail: 545<\/strong><\/p>\n\n\n\n<p><strong>Compute the probability of each event.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>Coin is tossed 1000 times, which means, number of trials are 1000.<\/p>\n\n\n\n<p>Let us consider, event of getting head and event of getting tail be E and F respectively.<\/p>\n\n\n\n<p>Number of favorable outcome = Number of trials in which the E happens = 455<\/p>\n\n\n\n<p>So, Probability of E = (Number of favorable outcome) \/ (Total number of trials)<\/p>\n\n\n\n<p>P(E) = 455\/1000 = 0.455<\/p>\n\n\n\n<p>Similarly,<\/p>\n\n\n\n<p>Number of favorable outcome = Number of trials in which the F happens = 545<\/p>\n\n\n\n<p>Probability of the event getting a tail, P(F) = 545\/1000 = 0.545<\/p>\n\n\n\n<p><strong>Question 2: Two coins are tossed simultaneously 500 times with the following frequencies of different outcomes:<\/strong><\/p>\n\n\n\n<p><strong>Two heads: 95 times<\/strong><\/p>\n\n\n\n<p><strong>One tail: 290 times<\/strong><\/p>\n\n\n\n<p><strong>No head : 115 times<\/strong><\/p>\n\n\n\n<p><strong>Find the probability of occurrence of each of these events.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>We know that, Probability of any event = (Number of favorable outcome) \/ (Total number of trials)<\/p>\n\n\n\n<p>Total number of trials = 95 + 290 + 115 = 500<\/p>\n\n\n\n<p>Now,<\/p>\n\n\n\n<p>P(Getting two heads) = 95\/500 = 0.19<\/p>\n\n\n\n<p>P(Getting one tail) = 290\/500 = 0.58<\/p>\n\n\n\n<p>P(Getting no head) = 115\/500 = 0.23<\/p>\n\n\n\n<p><strong>Question 3: Three coins are tossed simultaneously 100 times with the following frequencies of different outcomes:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Outcome<\/strong><\/td><td><strong>No head<\/strong><\/td><td><strong>One head<\/strong><\/td><td><strong>Two heads<\/strong><\/td><td><strong>Three heads<\/strong><\/td><\/tr><tr><td><strong>Frequency<\/strong><\/td><td><strong>14<\/strong><\/td><td><strong>38<\/strong><\/td><td><strong>36<\/strong><\/td><td><strong>12<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>If the three coins are simultaneously tossed again, compute the probability of:<\/strong><\/p>\n\n\n\n<p><strong>(i) 2 heads coming up<\/strong><\/p>\n\n\n\n<p><strong>(ii) 3 heads coming up<\/strong><\/p>\n\n\n\n<p><strong>(iii) At least one head coming up<\/strong><\/p>\n\n\n\n<p><strong>(iv) Getting more heads than tails<\/strong><\/p>\n\n\n\n<p><strong>(v) Getting more tails than heads<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>We know, Probability of an event = (Number of Favorable outcomes) \/ (Total Numbers of outcomes)<\/p>\n\n\n\n<p>In this case, total numbers of outcomes = 100.<\/p>\n\n\n\n<p><strong>(i)<\/strong>&nbsp;Probability of 2 Heads coming up = 36\/100 = 0.36<\/p>\n\n\n\n<p><strong>(ii)<\/strong>&nbsp;Probability of 3 Heads coming up = 12\/100 = 0.12<\/p>\n\n\n\n<p><strong>(iii)<\/strong>&nbsp;Probability of at least one head coming up = (38+36+12) \/ 100 = 86\/100 = 0.86<\/p>\n\n\n\n<p><strong>(iv)<\/strong>&nbsp;Probability of getting more Heads than Tails = (36+12)\/100 = 48\/100 = 0.48<\/p>\n\n\n\n<p><strong>(v)<\/strong>&nbsp;Probability of getting more tails than heads = (14+38) \/ 100 = 52\/100 = 0.52<\/p>\n\n\n\n<p><strong>Question 4: 1500 families with 2 children were selected randomly, and the following data were recorded:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"410\" height=\"81\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio.png\" alt=\"\" class=\"wp-image-545911\" title=\"RD sharma class 9 maths chapter 25 ex 25.1 Question 4\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio.png 410w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-300x59.png 300w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-400x79.png 400w\" sizes=\"auto, (max-width: 410px) 100vw, 410px\" \/><\/figure>\n\n\n\n<p><strong>If a family is chosen at random, compute the probability that it has:<\/strong><\/p>\n\n\n\n<p><strong>(i) No girl (ii) 1 girl (iii) 2 girls (iv) At most one girl (v) More girls than boys<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>We know, Probability of an event = (Number of Favorable outcomes) \/ (Total Numbers of outcomes)<\/p>\n\n\n\n<p>In this case, total numbers of outcomes = 211 + 814 + 475 = 1500.<\/p>\n\n\n\n<p>(Here, total numbers of outcomes = total number of families)<\/p>\n\n\n\n<p><strong>(i)<\/strong>&nbsp;Probability of having no girl = 211\/1500 = 0.1406<\/p>\n\n\n\n<p><strong>(ii)<\/strong>&nbsp;Probability of having 1 girl = 814\/1500 = 0.5426<\/p>\n\n\n\n<p><strong>(iii)<\/strong>&nbsp;Probability of having 2 girls = 475\/1500 = 0.3166<\/p>\n\n\n\n<p><strong>(iv)<\/strong>&nbsp;Probability of having at the most one girl = (211+814) \/1500 = 1025\/1500 = 0.6833<\/p>\n\n\n\n<p><strong>(v)<\/strong>&nbsp;Probability of having more girls than boys = 475\/1500 = 0.31<\/p>\n\n\n\n<p><strong>Question 5: In a cricket match, a batsman hits a boundary 6 times out of 30 balls he plays. Find the probability that on a ball played:<\/strong><\/p>\n\n\n\n<p><strong>(i) He hits boundary (ii) He does not hit a boundary.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>Total number of balls played by a player = 30<\/p>\n\n\n\n<p>Number of times he hits a boundary = 6<\/p>\n\n\n\n<p>Number of times he does not hit a boundary = 30 \u2013 6 = 24<\/p>\n\n\n\n<p>We know, Probability of an event = (Number of Favorable outcomes) \/ (Total Numbers of outcomes)<\/p>\n\n\n\n<p>Now,<\/p>\n\n\n\n<p><strong>(i)<\/strong>&nbsp;Probability (he hits boundary) = (Number of times he hit a boundary) \/ (Total number of balls he played)<\/p>\n\n\n\n<p>= 6\/30 = 1\/5<\/p>\n\n\n\n<p><strong>(ii)<\/strong>&nbsp;Probability that the batsman does not hit a boundary = 24\/30 = 4\/5<\/p>\n\n\n\n<p><strong>Question 6: The percentage of marks obtained by a student in monthly unit tests are given below:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"485\" height=\"103\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-1.png\" alt=\"\" class=\"wp-image-545912\" title=\"RD sharma class 9 maths chapter 25 ex 25.1 Question 6\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-1.png 485w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-1-300x64.png 300w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-1-400x85.png 400w\" sizes=\"auto, (max-width: 485px) 100vw, 485px\" \/><\/figure>\n\n\n\n<p><strong>Find the probability that the student gets<\/strong><\/p>\n\n\n\n<p><strong>(i) More than 70% marks<\/strong><\/p>\n\n\n\n<p><strong>(ii) Less than 70% marks<\/strong><\/p>\n\n\n\n<p><strong>(iii) A distinction<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>Total number of unit tests taken = 5<\/p>\n\n\n\n<p>We know, Probability of an event = (Number of Favorable outcomes) \/ (Total Numbers of outcomes)<\/p>\n\n\n\n<p><strong>(i)<\/strong>&nbsp;Number of times student got more than 70% = 3<\/p>\n\n\n\n<p>Probability (Getting more than 70%) = 3\/5 = 0.6<\/p>\n\n\n\n<p><strong>(ii)<\/strong>&nbsp;Number of times student got less than 70% = 2<\/p>\n\n\n\n<p>Probability (Getting less than 70%) = 2\/5 = 0.4<\/p>\n\n\n\n<p><strong>(iii)<\/strong>&nbsp;Number of times student got a distinction = 1[Marks more than 75%]<\/p>\n\n\n\n<p>Probability (Getting a distinction) = 1\/5 = 0.2<\/p>\n\n\n\n<p><strong>Question 7: To know the opinion of the students about Mathematics, a survey of 200 students were conducted. The data was recorded in the following table:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"333\" height=\"69\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-2.png\" alt=\"\" class=\"wp-image-545913\" title=\"RD sharma class 9 maths chapter 25 ex 25.1 Question 7\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-2.png 333w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/rd-sharma-class-9-maths-chapter-25-ex-25-1-questio-2-300x62.png 300w\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" \/><\/figure>\n\n\n\n<p><strong>Find the probability that student chosen at random:<\/strong><\/p>\n\n\n\n<p><strong>(i) Likes Mathematics (ii) Does not like it.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong><\/p>\n\n\n\n<p>Total number of students = 200<\/p>\n\n\n\n<p>Students like mathematics = 135<\/p>\n\n\n\n<p>Students dislike Mathematics = 65<\/p>\n\n\n\n<p>We know, Probability of an event = (Number of Favorable outcomes) \/ (Total Numbers of outcomes)<\/p>\n\n\n\n<p>(i) Probability (Student likes mathematics) = 135\/200 = 0.675<\/p>\n\n\n\n<p>(ii) Probability (Student does not like mathematics) = 65\/200 = 0.325<\/p>\n\n\n\n<p><strong><u>Exercise VSAQs Page No: 25.16<\/u><\/strong><\/p>\n\n\n\n<p><strong>Question 1: Define a trial.<\/strong><\/p>\n\n\n\n<p><strong>Solution:&nbsp;<\/strong>When we perform an experiment it is called a trial of the experiment. Whereas, an operation which can produce some well-defined outcomes is called an experiment.<\/p>\n\n\n\n<p>For example, we have 6 possible outcomes while rolling a die.<\/p>\n\n\n\n<p><strong>Question 2: Define an elementary event.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong>&nbsp;An outcome of a trial of an experiment is an elementary event.<\/p>\n\n\n\n<p><strong>Question 3: Define an event.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong>&nbsp;A subset of the sample space is called an event.<\/p>\n\n\n\n<p>For Example: In the experiment of tossing a coin:<\/p>\n\n\n\n<p>Event E = the event of getting a head<\/p>\n\n\n\n<p>Event F = the event of getting a tail<\/p>\n\n\n\n<p><strong>Question 4: Define Probability of an Event.<\/strong><\/p>\n\n\n\n<p><strong>Solution:<\/strong>&nbsp;Suppose an event E can happen in m ways out of a total of n possible equally likely ways.<\/p>\n\n\n\n<p>Then, the probability of occurrence of the event = P(E) = m\/n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-rd-sharma-solutions-for-class-9-maths-chapter-25-download-pdf\">RD Sharma Solutions for Class 9 Maths Chapter 25:&nbsp;<strong>Download PDF<\/strong><\/h2>\n\n\n\n<p>RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability<\/p>\n\n\n\n<p><a href=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/RD-Sharma-Solutions-for-Class-9-Maths-Chapter-25\u2013Probability.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Download PDF<\/strong>: RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability PDF<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Chapterwise RD Sharma Solutions for Class 9&nbsp;Maths :<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-1-number-system\/\">Chapter 1\u2013Number System<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-2-exponents-of-real-numbers\/\">Chapter 2\u2013Exponents of Real Numbers<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-3-rationalisation\/\">Chapter 3\u2013Rationalisation<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-4-algebraic-identities\/\">Chapter 4\u2013Algebraic Identities<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-5-factorization-of-algebraic-expressions\/\">Chapter 5\u2013Factorization of Algebraic Expressions<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-6-factorization-of-polynomials\/\">Chapter 6\u2013Factorization Of Polynomials<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-7-introduction-to-euclids-geometry\/\">Chapter 7\u2013Introduction to Euclid\u2019s Geometry<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-8-lines-and-angles\/\">Chapter 8\u2013Lines and Angles<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-9-triangle-and-its-angles\/\">Chapter 9\u2013Triangle and its Angles<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-10-congruent-triangles\/\">Chapter 10\u2013Congruent Triangles<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-11-co-ordinate-geometry\/\">Chapter 11\u2013Coordinate Geometry<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-12-herons-formula\/\">Chapter 12\u2013Heron\u2019s Formula<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-13-linear-equations-in-two-variables\/\">Chapter 13\u2013Linear Equations in Two Variables<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-14-quadrilaterals\/\">Chapter 14\u2013Quadrilaterals<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-15-area-of-parallelograms-and-triangles\/\">Chapter 15\u2013Area of Parallelograms and Triangles<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-16-circles\/\">Chapter 16\u2013Circles<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-17-construction\/\">Chapter 17\u2013Construction<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-18-surface-area-and-volume-of-cuboid-and-cube\/\">Chapter 18\u2013Surface Area and Volume of Cuboid and Cube<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-19-surface-area-and-volume-of-a-right-circular-cylinder\/\">Chapter 19\u2013Surface Area and Volume of A Right Circular Cylinder<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-20-surface-area-and-volume-of-a-right-circular-cone\/\">Chapter 20\u2013Surface Area and Volume of A Right Circular Cone<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-21-surface-area-and-volume-of-sphere\/\">Chapter 21\u2013Surface Area And Volume Of Sphere<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-22-tabular-representation-of-statistical-data\/\">Chapter 22\u2013Tabular Representation of Statistical Data<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-23-graphical-representation-of-statistical-data\/\">Chapter 23\u2013Graphical Representation of Statistical Data<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-24-measure-of-central-tendency\/\">Chapter 24\u2013Measure of Central Tendency<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\">Chapter 25\u2013Probability<\/a><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">About RD Sharma<\/h2>\n\n\n\n<p>RD Sharma i<em>sn&#8217;t the kind of author you&#8217;d bump into at lit fests. But his bestselling books have helped many&nbsp;<\/em>CBSE<em>&nbsp;students lose their dread of&nbsp;<\/em>maths<em>. Sunday Times profiles the tutor turned internet star<\/em><br>He dreams of algorithms that would give most people nightmares. And, spends every waking hour thinking of ways to explain concepts like &#8216;series solution of linear differential equations&#8217;. Meet Dr&nbsp;Ravi Dutt Sharma&nbsp;\u2014&nbsp;mathematics&nbsp;teacher and author of 25 reference books \u2014 whose name evokes as much awe as the subject he teaches. And though students have used his thick tomes for the last 31 years to ace the dreaded maths exam, it&#8217;s only recently that a spoof video turned the tutor into a YouTube star.<\/p>\n\n\n\n<p>R D Sharma had a good laugh but said he shared little with his on-screen persona except for the love for maths. &#8220;I like to spend all my time thinking and writing about maths problems. I find it relaxing,&#8221; he says. When he is not writing books explaining mathematical concepts for classes 6 to 12 and engineering students, Sharma is busy dispensing his duty as vice-principal and head of department of science and humanities at Delhi government&#8217;s Guru Nanak Dev Institute of Technology.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Read More<\/h2>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links\"><li><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-chapter-15-probability\/\">NCERT Solutions for Maths:  Chapter 15 &#8211; Probability<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-4th-class-maths-chapter-13-fields-and-fences\/\">NCERT Solutions for 4th Class Maths Chapter 13-Fields And Fences<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-9th-class-maths-chapter-15-probability\/\">NCERT Solutions for 9th class Maths : Chapter 15 Probability<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-10-maths-chapter-13-probability\/\">RD Sharma Solutions for Class 10 Maths Chapter 13\u2013Probability<\/a><\/li><li><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-12th-class-maths-chapter-13-probability\/\">NCERT Solutions for 12th Class Maths: Chapter 13-Probability<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Class 9: Maths Chapter 25 solutions. Complete Class 9 Maths Chapter 25 Notes. RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability RD Sharma 9th Maths Chapter 25, Class 9 Maths Chapter 25 solutions Exercise 25.1 Page No: 25.13 Question 1: A coin is tossed 1000 times with the following sequence: Head: 455, Tail: 545 [&hellip;]<\/p>\n","protected":false},"author":302,"featured_media":545910,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"newspack_featured_image_position":"","newspack_post_subtitle":"","newspack_article_summary_title":"Overview:","newspack_article_summary":"","newspack_hide_updated_date":false,"newspack_show_updated_date":false,"footnotes":""},"categories":[1411,921],"tags":[1962],"boards":[],"class_list":["post-545907","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-book-solutions","category-class-9","tag-rd-sharma-solutions","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>RD Sharma Solutions for Class 9, maths Chapter 25 - IndCareer Schools<\/title>\n<meta name=\"description\" content=\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability | Browse all Class 9 Maths Chapters RD Sharma books - IndCareer Schools\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability\" \/>\n<meta property=\"og:description\" content=\"Class 9: Maths Chapter 25 solutions. Complete Class 9 Maths Chapter 25 Notes. RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability RD Sharma 9th\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\" \/>\n<meta property=\"og:site_name\" content=\"IndCareer Schools\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/indcareer\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-05T08:04:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-05T10:43:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i2.wp.com\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png?fit=1200%2C675&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Pooja\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@indcareer\" \/>\n<meta name=\"twitter:site\" content=\"@indcareer\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Pooja\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\"},\"author\":{\"name\":\"Pooja\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/d6945cf059726f162259ba738092301e\"},\"headline\":\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability\",\"datePublished\":\"2021-10-05T08:04:10+00:00\",\"dateModified\":\"2021-10-05T10:43:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\"},\"wordCount\":1273,\"publisher\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png\",\"keywords\":[\"RD Sharma Solutions\"],\"articleSection\":[\"Book Solutions\",\"class 9\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\",\"url\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\",\"name\":\"RD Sharma Solutions for Class 9, maths Chapter 25 - IndCareer Schools\",\"isPartOf\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png\",\"datePublished\":\"2021-10-05T08:04:10+00:00\",\"dateModified\":\"2021-10-05T10:43:16+00:00\",\"description\":\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability | Browse all Class 9 Maths Chapters RD Sharma books - IndCareer Schools\",\"breadcrumb\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage\",\"url\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png\",\"contentUrl\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png\",\"width\":1200,\"height\":675,\"caption\":\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.indcareer.com\/schools\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"class 9\",\"item\":\"https:\/\/www.indcareer.com\/schools\/class-9\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#website\",\"url\":\"https:\/\/www.indcareer.com\/schools\/\",\"name\":\"IndCareer Schools\",\"description\":\"School Admissions &amp; Notices\",\"publisher\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.indcareer.com\/schools\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#organization\",\"name\":\"IndCareer\",\"url\":\"https:\/\/www.indcareer.com\/schools\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/06\/indcareer-logo2.png\",\"contentUrl\":\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/06\/indcareer-logo2.png\",\"width\":512,\"height\":250,\"caption\":\"IndCareer\"},\"image\":{\"@id\":\"https:\/\/www.indcareer.com\/schools\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/indcareer\",\"https:\/\/x.com\/indcareer\",\"https:\/\/www.youtube.com\/channel\/UC1liU3RZoBRuu8YcAuZMsOQ\"],\"email\":\"info@ebharat.in\",\"legalName\":\"IndCareer\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"1\",\"maxValue\":\"10\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/d6945cf059726f162259ba738092301e\",\"name\":\"Pooja\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/350f7cfdfb6a23bcab67b56b5e77549db2a13b5d23e63175ac5bd07b5d44b720?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/350f7cfdfb6a23bcab67b56b5e77549db2a13b5d23e63175ac5bd07b5d44b720?s=96&d=mm&r=g\",\"caption\":\"Pooja\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"RD Sharma Solutions for Class 9, maths Chapter 25 - IndCareer Schools","description":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability | Browse all Class 9 Maths Chapters RD Sharma books - IndCareer Schools","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/","og_locale":"en_US","og_type":"article","og_title":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability","og_description":"Class 9: Maths Chapter 25 solutions. Complete Class 9 Maths Chapter 25 Notes. RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability RD Sharma 9th","og_url":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/","og_site_name":"IndCareer Schools","article_publisher":"https:\/\/www.facebook.com\/indcareer","article_published_time":"2021-10-05T08:04:10+00:00","article_modified_time":"2021-10-05T10:43:16+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/i2.wp.com\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png?fit=1200%2C675&ssl=1","type":"image\/png"}],"author":"Pooja","twitter_card":"summary_large_image","twitter_creator":"@indcareer","twitter_site":"@indcareer","twitter_misc":{"Written by":"Pooja","Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#article","isPartOf":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/"},"author":{"name":"Pooja","@id":"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/d6945cf059726f162259ba738092301e"},"headline":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability","datePublished":"2021-10-05T08:04:10+00:00","dateModified":"2021-10-05T10:43:16+00:00","mainEntityOfPage":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/"},"wordCount":1273,"publisher":{"@id":"https:\/\/www.indcareer.com\/schools\/#organization"},"image":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage"},"thumbnailUrl":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png","keywords":["RD Sharma Solutions"],"articleSection":["Book Solutions","class 9"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/","url":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/","name":"RD Sharma Solutions for Class 9, maths Chapter 25 - IndCareer Schools","isPartOf":{"@id":"https:\/\/www.indcareer.com\/schools\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage"},"image":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage"},"thumbnailUrl":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png","datePublished":"2021-10-05T08:04:10+00:00","dateModified":"2021-10-05T10:43:16+00:00","description":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability | Browse all Class 9 Maths Chapters RD Sharma books - IndCareer Schools","breadcrumb":{"@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#primaryimage","url":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png","contentUrl":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/10\/class9m25.png","width":1200,"height":675,"caption":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability"},{"@type":"BreadcrumbList","@id":"https:\/\/www.indcareer.com\/schools\/rd-sharma-solutions-for-class-9-maths-chapter-25-probability\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.indcareer.com\/schools\/"},{"@type":"ListItem","position":2,"name":"class 9","item":"https:\/\/www.indcareer.com\/schools\/class-9\/"},{"@type":"ListItem","position":3,"name":"RD Sharma Solutions for Class 9 Maths Chapter 25\u2013Probability"}]},{"@type":"WebSite","@id":"https:\/\/www.indcareer.com\/schools\/#website","url":"https:\/\/www.indcareer.com\/schools\/","name":"IndCareer Schools","description":"School Admissions &amp; Notices","publisher":{"@id":"https:\/\/www.indcareer.com\/schools\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.indcareer.com\/schools\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.indcareer.com\/schools\/#organization","name":"IndCareer","url":"https:\/\/www.indcareer.com\/schools\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.indcareer.com\/schools\/#\/schema\/logo\/image\/","url":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/06\/indcareer-logo2.png","contentUrl":"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/06\/indcareer-logo2.png","width":512,"height":250,"caption":"IndCareer"},"image":{"@id":"https:\/\/www.indcareer.com\/schools\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/indcareer","https:\/\/x.com\/indcareer","https:\/\/www.youtube.com\/channel\/UC1liU3RZoBRuu8YcAuZMsOQ"],"email":"info@ebharat.in","legalName":"IndCareer","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"1","maxValue":"10"}},{"@type":"Person","@id":"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/d6945cf059726f162259ba738092301e","name":"Pooja","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.indcareer.com\/schools\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/350f7cfdfb6a23bcab67b56b5e77549db2a13b5d23e63175ac5bd07b5d44b720?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/350f7cfdfb6a23bcab67b56b5e77549db2a13b5d23e63175ac5bd07b5d44b720?s=96&d=mm&r=g","caption":"Pooja"}}]}},"_links":{"self":[{"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/posts\/545907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/users\/302"}],"replies":[{"embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/comments?post=545907"}],"version-history":[{"count":0,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/posts\/545907\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/media\/545910"}],"wp:attachment":[{"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/media?parent=545907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/categories?post=545907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/tags?post=545907"},{"taxonomy":"boards","embeddable":true,"href":"https:\/\/www.indcareer.com\/schools\/wp-json\/wp\/v2\/boards?post=545907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}