一不做,二不休.

來源: jinjing 於 2010-04-23 10:23:23 [] [舊帖] [給我悄悄話] 閱讀數 : (472 bytes)

同花順:10*4/C(52,5)=0.000015391

四頭:C(13,1)*C(4,4)*C(48,1)/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

三：C(13,1)*C(4,3)*C(48,1)*C(44,1)/C(52,5)=.042256903

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

隊:C(4,2)*C(48,1)*C(44,1)*C(40,1)*P(2,2)/C(52,5)=0.390063718

荒:C(52,1)*C(48,1)*C(44,1)*C(40,1)*C(36,1)/P(52,5)=0.507082833

所有跟帖： 

• 順:10*4^5=0.003940038-0.000015391=0.003924647, -Jinjing- ♀ 給 Jinjing 發送悄悄話 (638 bytes) () 04/25/2010 postreply 14:21:57

請您先登陸，再發跟帖！