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Question:

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 (i) likes statistics. (ii) does not like statistics. like: 135, dislike: 65

Solution:

Total number of students = 135 + 65 = 200
(i) Number of students like statistics = 135
Probability = 135/200 = 27/40
(ii) Number of students who don't like statistics = 65
Probability = 65/200 = 13/40