Posted by Katia on Monday, December 13, 2010 at 7:34pm.
i meant c(10,2)c(2,1) divided by c(22,4)
i meant c(10,2)c(2,1) divided by c(22,4)
so we want 2 from the black, then 2 more from the rest
prob of that = C(10,2) C(12,2) / C(22,4)
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