送交者: 草绿 于 July 31, 2009 22:20:53:
回答: 还是不能同意 由 逻辑 于 July 31, 2009 20:40:11:
即CHI版是把没有树的门打开，不是说他打开的门碰巧没有树。
想了一下怎样用例子说明。I think the following case will convince you. Let's do this experiment over and over again for a large number of times N. Suppose the monkey sticks with the first door, and the banana tree is moved behind the three doors. Then N/3 times the tree will be behind the door that the monkey picks, and 2N/3 times the tree will be behind the other two doors. But when the tree is behind the other two doors, since the one without the tree will be open, the tree has to be in the other one. So whenever the tree is behind the other two doors, which is 2/3 of the times, the monkey should switch.