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.
Opinion -Number of students
like - 135
dislike - 65
Find the probability that a student chosen at random
(i) likes statistics,
(ii) does not like it.

Answer 1

Dear Student,

➡️➡️Solution:

➡️Probability of an event = Favourable outcome/Total Possible Outcome

Total Possible Outcome = 200

Favourable cases who like statistics = 135

Favourable cases who dislike statistics = 65

➡️➡️1) Probability that a student chosen like statistics = 135/200

= 27/40

➡️➡️2) Probability that a student chosen dislike
statistics = 65/200

= 13/40

Hope it helps you

Answer 2

To know the opinion of the students about the subject statistics, a survey of 200 students was conducted in which 135 were liking and 65 were disliking.



Total number of students : 200

Total number of students who were liking the survey : 135

Total number of students who were disliking the survey : 65



Therefore,
( i )


Probability of getting a student who liked the survey = ( total number of students who liked the survey ) / ( total number of students )


Probability of getting a student who liked the survey = ( 135 ) / 200


Probability of getting a student who liked the survey = 27 / 40



( ii ) :


Probability of getting a student who disliked the survey = ( total number of students who disliked the survey ) / ( total number of students )


Probability of getting a student who disliked the survey = ( 65 ) / ( 200 )


Probability of getting a student who disliked the survey = 13 / 40


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