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OpenStudy (nathan917):
From a committee of 6 girls and 4 boys, a name is selected. Then another name is selected. What is the probability that both people drawn will be girls? nine over twenty-five two-fifteenths three-fifths one-third
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OpenStudy (rulnick):
Prob both girls = Prob first is girl x Prob second is girl given first was girl.
OpenStudy (nathan917):
probability of drawing a girl in the first pick x probability of drawing a girl in the 2nd pick = 6/10 x 5/9 = (6x5) / (10x9) = 30 / 90 = 1 / 3
OpenStudy (rulnick):
Yes!
OpenStudy (nathan917):
ok. Thanks.
OpenStudy (rulnick):
welcome
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OpenStudy (goldphenoix):
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