2 Answers

Spunky · Answer 1 · 2020-12-27T08:50:45+0000

Answer: C. 0.60

Explanation:

From the given table , the number of students are junior : 60

The total number of students = 137

The probability of selecting any junior is given by :-

$\text{P(Junior)}=(60)/(137)$

The number of juniors which who attended Jazz = 36

Then , the probability of selecting a students is junior and attends jazz is given by :-

$\text{P(Junior and Jazz)}=(36)/(137)$

Now, the conditional probability that the student attended the jazz concert given that student is a junior will be :-

$\text{P(Jazz}|\text{Junior)}=((36)/(137))/((60)/(137))\\\\\\=(6)/(10)=0.60$

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