回复：回复：C H A G E　ＦＲＯＭ 3)

来源: endofsuburbia 于 2010-02-05 12:04:09 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (213 bytes)
回答: C H A G E　ＦＲＯＭ 3) 由 jinjing 于 2010-02-03 11:56:26

Let x=.263 and y=.386, assuming the first guy shoot in the air on first shot.

P(c) = (1-y)*(1-x) = .45
P(b) = y * (1-x) * y / (1-(1-x)*(1-y)) = .20
P(a) = 1- P(c) - P(b) = .35

Am I missing sth?

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• 回复：回复：回复：C H A G E　ＦＲＯＭ 3) -guest007- ♀ 给 guest007 发送悄悄话 (146 bytes) () 02/06/2010 postreply 17:17:37

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