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

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.