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September 19, 2014

September 19, 2014

Posted by **Sam** on Monday, February 28, 2011 at 8:31pm.

- math probability -
**Reiny**, Monday, February 28, 2011 at 9:05pmprob (two are white) = C(4,2)((3/8)^2(5/8)^2

Prob(three are white = C(4,3)(3/8)^3(5/8)

add them up.

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