SOLUTION: There are 27 students in a class, 14 are girls. If 5 students got an A on a test, what is the probability that it was 3 boys and 2 girls?
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Question 440273: There are 27 students in a class, 14 are girls. If 5 students got an A on a test, what is the probability that it was 3 boys and 2 girls?
You can put this solution on YOUR website! There are 27 students in a class, 14 are girls. If 5 students got an A on a test, what is the probability that it was 3 boys and 2 girls?
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# of ways to pick 2 girls: 14C2
# of ways to pick 3 boys: 13C3
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# of ways to pick 5 students 27C5
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P(3 boys and 2 girls) = [14C2*13C3]/[27C5] = 0.3224
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Cheers,
Stan H.
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