以抓阄为例,3人3个纸团.第一个人抽中概率为1/3,若没有抽中则第2个人抽中的概率就是1/2了,他也没中,那最后一人就是100%的概率.可是书上不是这么解释的:设Ai=第i个人抽到,i=1,2,3.P(A1)=1/3,P(A2竖
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 06:32:38
![以抓阄为例,3人3个纸团.第一个人抽中概率为1/3,若没有抽中则第2个人抽中的概率就是1/2了,他也没中,那最后一人就是100%的概率.可是书上不是这么解释的:设Ai=第i个人抽到,i=1,2,3.P(A1)=1/3,P(A2竖](/uploads/image/z/10227904-16-4.jpg?t=%E4%BB%A5%E6%8A%93%E9%98%84%E4%B8%BA%E4%BE%8B%2C3%E4%BA%BA3%E4%B8%AA%E7%BA%B8%E5%9B%A2.%E7%AC%AC%E4%B8%80%E4%B8%AA%E4%BA%BA%E6%8A%BD%E4%B8%AD%E6%A6%82%E7%8E%87%E4%B8%BA1%2F3%2C%E8%8B%A5%E6%B2%A1%E6%9C%89%E6%8A%BD%E4%B8%AD%E5%88%99%E7%AC%AC2%E4%B8%AA%E4%BA%BA%E6%8A%BD%E4%B8%AD%E7%9A%84%E6%A6%82%E7%8E%87%E5%B0%B1%E6%98%AF1%2F2%E4%BA%86%2C%E4%BB%96%E4%B9%9F%E6%B2%A1%E4%B8%AD%2C%E9%82%A3%E6%9C%80%E5%90%8E%E4%B8%80%E4%BA%BA%E5%B0%B1%E6%98%AF100%25%E7%9A%84%E6%A6%82%E7%8E%87.%E5%8F%AF%E6%98%AF%E4%B9%A6%E4%B8%8A%E4%B8%8D%E6%98%AF%E8%BF%99%E4%B9%88%E8%A7%A3%E9%87%8A%E7%9A%84%EF%BC%9A%E8%AE%BEAi%3D%E7%AC%ACi%E4%B8%AA%E4%BA%BA%E6%8A%BD%E5%88%B0%2Ci%3D1%2C2%2C3.P%28A1%29%3D1%2F3%2CP%28A2%E7%AB%96)
xVNH~zR۵Ino{כUq%I
lhiqW̱]CA[B|ߙY~$u_\Vb|Os8L|cY;Qu~hՑ4
B\yLvb!KF0&pScå_RߜhX&g^ë^0lz&t.W 4Ng+y`s=\?Zk'/w,]*X.r1ZHlO!"SЉkͪP궇b-,/A\ӑK@AhA6GF1W ҜקMCqf+:OzzME>F'瑱#
^]϶j}"
M1Eu2Wp\®jWWCj5,
`M:Jt-^Z{NiU
9w=9j?3T):a5N\:_Bw'tԴGxU6o- Č4կ}2PiCx'Y!魿'~ <}(1"=\HJv<#(w+^K.a3LMh=3N
bl6넗M`}:T:@չ|[ԽIofef͚h.bɭ Px*&rUYVbfkBPm;t1!S=KLy