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OpenStudy (anonymous):
There are 5 Republicans and 8 Democrats on a committee. A sub committee of four is selected at random. What is the probability that all are Republicans, given that at least two are Republicans?
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OpenStudy (raden):
just leaving selects 2 of 3 Rep... P(2R's) = 3C2/11C2
OpenStudy (raden):
does that make sense ?
OpenStudy (anonymous):
I tried it but it is not taking it as an answer.
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