Question 349671
Mrsl Larsen's third grade class has 22 students, 12 girls and 10 boys. Two students must be selected at random to be in the spring play. What is the probability that one boy and one girl will be chosen? Order is not important.
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P(choose 2 girls)= 12C2/22C2
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P(choose 2 boys) = 10C2/22C2
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P(one boy and one girl) = 1- [(12C2+10C2)/22C2]
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Cheers,
Stan H.