The problem is not clear.

来源: 乱弹 于 2010-03-30 18:30:30 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (84 bytes)

Probably it asks for the probability P of 13 | Xn for some n. Then the answer is 1.

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• 回复：The problem is not clear. -jinjing- ♀ 给 jinjing 发送悄悄话 (76 bytes) () 03/30/2010 postreply 20:32:58

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