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[打法交流]
百家乐计算错在哪里?top2名校学生算的也不专业
 
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 本帖最后由 波菜人生 于 2021-9-15 22:58 编辑  
2 x7 B5 A# A; `2 B& z/ D' |: k- |* e3 Y, K 
源于一个话题 ,闲出9点的概率有多大?top2名校生,提出一个算法,看起来,没啥问题,我当时也是佩服他的思维缜密,后面我看了一个专业人士算法,和他计算的数据,相差有点大(话题:闲家9点的概率  他算出的结果是 0.121 ,业内人士算出的结果是 :0.141958)。7 W  B# R! F5 j# `# ^5 i3 t 
原文  https://tcelue.tv/thread-2371308-1-1.html  下一把出9点的概率   . F: V% Q6 f2 ~6 S- t& _ 
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为了简化计算,提出一个更加简洁的命题 ,靴子里1-K 各剩一张,求 闲家 “例牌” 9 且 庄家是0点的 组合数等于多少?% M6 Q  n4 N- v. A 
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==== 
- }6 o) W! d  Q6 }1 `; M 闲:0+9。闲家0= C(4,1)=4 种, 庄 0+0 =C(3,2)=3 种 ,2+8 ,3+7,4+6 各1种,  累计组合 4*(3+1+1+1)=24种 ) w8 E( Z2 R: p, R" O/ z  ` 
 闲:1+8 ,庄 0+0 =C(4,2)=6 种 ,3+7,4+6 各1个,  累计组合数 6+1+1=8种 
  `9 ^  S7 N7 ~1 n 闲:2+7 ,庄 0+0 =C(4,2)=6 种  ,1+9 ,4+6 各1个,  累计组合 6+1+1=8种  
/ D7 I4 e- r5 B' {- |/ c# b1 E  d+ ~ 闲:3+6 ,庄 0+0 =C(4,2)=6 种  ,1+9,2+8 各1个,  累计组合数 6+1+1=8种  
4 Z% V2 x5 e0 A; m( o) \ 闲:4+5 ,庄 0+0 =C(4,2)=6 种  ,1+9,2+8 ,3+7 各1个,  累计组合数 6+1+1+1=9种 , f# v2 d* e" d- X$ a6 A, { 
 
( k+ |2 h# ^: E2 v. F. z* L+ O 累计组合数  24+8+8+8+9=57 种 ,这和专业人士算出的组合数 (16416种)相差甚远 ,错在哪里?  u6 h& L+ l1 a5 ]; r* Q: a 
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