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A recent survey reported that 60 percent...

A recent survey reported that 60 percent of the students at a high school are girls and 65 percent of girls at this school play a sport. If a student at this high school were selected at random, what is the probability that the student is a girl who plays a sport?

A

0.1

B

0.21

C

0.32

D

0.42

Text Solution

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The correct Answer is:
D

The probability that a student is a girl at this high school is 0.6. The probability that a student who plays a sport is a girl is 0.65. Therefore, the probability that a girl student plays a sport is (0.6)(0.65)=0.39. [22]
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