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Ex  15.1, 7 - To know the opinion of the students about - Ex 15.1

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Ex  15.1, 7 - Chapter 15 Class 9 Probability - Part 2

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Ex 15.1, 7 To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Find the probability that a student chosen at random likes statistics, Total number of students = 135 + 65 = 200 Number of students liking statistics = 135 P(students liking statistics) = 135/200 = 27/40 Ex 15.1, 7 Find the probability that a student chosen at random (ii) does not like it Total number of students = 135 + 65 = 200 Number of students not liking statistics = 65 P(students not liking statistics) = 65/200 = 13/40

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.