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The accounting association has 15 members, 10 of which are CPAs. The members are to be selected to study ways to increase membership. What is the probability of all three selected are CPAs?

I tried to calculate by multiplying (10/15)*(9/14)*(8/13) and came up with .264. But the answer given on the quiz is .736

Am I suppose to subtract .264 by 1? Can you show me the proper way to calculate this probabilty?

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