作者brucejune (...)
看板Statistics
标题[问题] 一题机率的问题
时间Sun Feb 17 19:02:14 2008
suppose that you bet $5 on each of a sequence of 50 independent fair games.
use the central limit theorem to approximate the probability that you
will lose more than$ 75.
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使用了CLT之後就不知道要怎麽做了
垦请哪位大大解惑一下^^"
感谢!!
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1F:推 glasslands:是不是少给定单一事件的变异数~~? 02/17 19:55
2F:推 tk747:交大的考古题 02/17 20:33
3F:推 chrisjon:公平的游戏,所以胜率(p) = 0.5,二项近似常态 ? 02/17 22:43
4F:→ mutanall:X设损失金额($5) P(X>15) X~Bin(50 , 0.5) ?? 02/18 17:42