SOLUTION: A class of first graders includes 7 girls and 14 boys, 2 students are selected at random to be the teachers assistant on a given day. What is the probability that both are boys?
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Question 545413: A class of first graders includes 7 girls and 14 boys, 2 students are selected at random to be the teachers assistant on a given day. What is the probability that both are boys? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A class of first graders includes 7 girls and 14 boys, 2 students are selected at random to be the teachers assistant on a given day. What is the probability that both are boys?
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# of ways to succeed: 14C2 = 91
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# of random pairs: 21C2 = 210
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Cheers,
Stan H.
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