52 牌中各牌概率,糾正貼.加油先生請諒.

來源: jinjing 2010-09-24 07:09:01 [] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (889 bytes)
同花順:10*4/C(52,5)=0.000015391

四頭: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

順: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對: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

隊: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

所有跟帖: 

請自我查對. -guest007- 給 guest007 發送悄悄話 (50 bytes) () 09/27/2010 postreply 14:25:55

Thanks. All are right. Only first one the definition is not the -jinjing- 給 jinjing 發送悄悄話 (0 bytes) () 09/27/2010 postreply 16:26:11

:) -guest007- 給 guest007 發送悄悄話 (0 bytes) () 09/27/2010 postreply 18:07:09

請您先登陸,再發跟帖!

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