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OpenStudy (anonymous):
A bag contains 4 red marbles, 2 green ones, 2 white ones, and 1 purple one. Michelle reaches into the bag and grabs 5 of the marbles. Find the probability that she has 2 green ones and 1 of each of the other colors.
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OpenStudy (anonymous):
(2C2) (4C1) (2C1) (1C1) / (9C5)
OpenStudy (anonymous):
i tried that and i got 4/63 but the answer shows as 2/63
OpenStudy (anonymous):
ok, are you sure you didn't leave anything out?
OpenStudy (anonymous):
yes I'm positive! I'm stumped :(
OpenStudy (anonymous):
maybe he made the answer key wrong
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OpenStudy (anonymous):
i would think so.
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