回複：回複：C H A G E　ＦＲＯＭ 3)

來源: 於 2010-02-05 12:04:09 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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?