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Re:对这个题目有点疑惑~~ 麻烦谁能解答一下

Posted by cgp2001 at 2007-12-09 15:53:29 on Problem 1189
In Reply To:对这个题目有点疑惑~~ 麻烦谁能解答一下 Posted by:kobeallen at 2007-11-13 11:16:52
> 有些位置的格子,球可能就无法到达?  
> 比如:*
>     *  。
>    1  1  1
> 1 表示的是格子的中心位置,例如在最顶上从右边落下,球落在的是两个格子的连接处。
> 能说说上面的数据中球落在三个格子的概率分别是多少吗?
0.25 0.75 0

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