52 牌中各牌概率,纠正贴.加油先生请谅.

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

所有跟帖： 

• 请自我查对. -guest007- ♀ (50 bytes) () 09/27/2010 postreply 14:25:55

• Thanks. All are right. Only first one the definition is not the -jinjing- ♀ (0 bytes) () 09/27/2010 postreply 16:26:11

• :) -guest007- ♀ (0 bytes) () 09/27/2010 postreply 18:07:09