同一天生日 - 推理遊戲

By Selena
at 2007-03-11T23:53
at 2007-03-11T23:53
Table of Contents
在沒有人2月29日出生,以及沒有雙胞胎,多胞胎前提下
任意指定x人,有兩人同一天生日的機率有50%
那麼x會是多少?
--
任意指定x人,有兩人同一天生日的機率有50%
那麼x會是多少?
--
Tags:
推理遊戲
All Comments

By Mia
at 2007-03-12T07:33
at 2007-03-12T07:33
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