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OpenStudy (anonymous):
a committee is to consist of 3 teachers and 3 parents, who are to be chosen from a group of 20 teachers and 100 parents. if half the teachers are female, and 80 parents are female, find the probability that the comittee has only female members
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OpenStudy (anonymous):
and also the probability that only 1 parent and only 1 teacher who are female
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