The table below shows the sports preferences of people in three groups: a-If one

ID: 3207477 • Letter: T

Question

The table below shows the sports preferences of people in three groups:

a-If one of the 165 subjects is randomly selected,find the probability that the person likes fishing given that this person is in high school.

b-If one of the 165 subjects is randomly selected,find the probability that the person likes is in high school given that this person likes fishing.

c-If one of the 165 subjects is randomly selected,find the probability that this person does not like fishing.

fishing hunting martial arts Elementary school 30 15 10 Middle school 25 10 20 high school 10 20 25

a. P(fishing given that high school)=P(fishing and high school)/P(high school)= 10/(10+20+25)= 10/55=0.1818

b. P(high school given likes fishing)=P(high school and likes fishing)/P(fishing)= 10/(30+25+10)=10/65= 0.1538

C. P( no fishing)= 1-P(fishing)= 1-(30+25+10)/165= 0.6060

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