总所周知,三国杀牌堆由3份扑克牌(不包含大小王)和4张扩展♥Q闪电♦Q无懈♠2寒冰♣2仁王盾共52*3+4=160张牌组成,其中≤8点数有98张,>8点数62张
设P(X)为拿X张的概率,其中X为张数
P(3)=C³₉₈/C³₁₆₀≈22.7%
P(2)=(C²₉₈C¹₆₂)/C³₁₆₀≈43.99%
P(1)=(C¹₉₈C²₆₂)/C³₁₆₀≈27.66%
P(0)=C³₆₂/C³₁₆₀≈5.65%
P(X≥2)=P(2)+P(3)≈66.69%,约为2/3
![](http://tiebapic.baidu.com/forum/w%3D580/sign=b1e5f2ae8b11728b302d8c2af8fdc3b3/b9f45390f603738dc992711df51bb051f919ec2e.jpg?tbpicau=2024-07-14-05_cb5564dffbed27c4552a6cc047470337)
设P(X)为拿X张的概率,其中X为张数
P(3)=C³₉₈/C³₁₆₀≈22.7%
P(2)=(C²₉₈C¹₆₂)/C³₁₆₀≈43.99%
P(1)=(C¹₉₈C²₆₂)/C³₁₆₀≈27.66%
P(0)=C³₆₂/C³₁₆₀≈5.65%
P(X≥2)=P(2)+P(3)≈66.69%,约为2/3
![](http://tiebapic.baidu.com/forum/w%3D580/sign=b1e5f2ae8b11728b302d8c2af8fdc3b3/b9f45390f603738dc992711df51bb051f919ec2e.jpg?tbpicau=2024-07-14-05_cb5564dffbed27c4552a6cc047470337)