52 牌中各牌概率,纠正贴.加油先生请谅.

来源: 2010-09-24 07:09:01 [旧帖] [给我悄悄话] 本文已被阅读:

同花顺:10*4/C(52,5)=0.000015391

四头:C(13,2)*C(4,4)*C(4,1)*C(2,1)/C(52,5)=.000240096

同花:C(13,5)*C(4,1)/C(52,5)-0.000015391=0.001965401

3,2(Fullhouse):)C(4,3)*C(4,2)*P(13,2)/C(52,5)=0.00140576

顺:10*4^5=0.003940038-0.000015391=0.003924647,

三:C(13,3)*C(4,3)*C(4,1)*C(4,1)*C(3,1)/C(52,5)=.021128451
C(13,1)*C(4,3)*C(48,1)*C(44,1)/2C(52,5)=.021128451

2对:C(13,3)*C(4,2)*C(4,2)*C(4,1)*C(3,1)/C(52,5)=0.047539016
C(13,2)*C(4,2)*C(4,2)*C(44,1)/C(52,5)=0.047539016

队:C(13,4)*C(4,2)*C(4,1)*C(4,1)*C(4,1)*C(4,1)/C(52,5)=0.422569028

荒:C(52,1)*C(48,1)*C(44,1)*C(40,1)*C(36,1)/P(52,5)-0.000015391-0.001965401-0.003940038=0.501162003
C(13,5)*C(4,1)*C(4,1)*C(4,1)*C(4,1)*C(4,1)/C(52,5)-0.000015391-0.001965401-0.003940038=0.501162003