20 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. Opinion Number of students like 135 dislike 65 Find the probability that a student chosen at random (1) likes statistics, (ii) does not like it.
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Answer:
(i)
40/27
(ii)
40/13
Total number of students =200
(i) Number of students who like the subject of statistics =135
The probability that a student likes that subject =
200/135
=
40/27
(ii) Number of students who dislike the subject of statics = 65
The probability that a student dislikes the subject =
200/65
=
40/13
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