作者brucejune (...)
看板Grad-ProbAsk
标题[理工] 请教一题机率
时间Thu Apr 2 18:58:47 2009
The lifetimes(in hours) of batteries manufactured by a certain company are
identically distributed with probability distribution and probability density
functions F and f,respectively.
Find the expected value of the life time of an s-hour-old battery in
terms of F and f.
Compare your answer with the expected life time of a new battery
if the distribution is Gamma.
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想请教这题机率该如何做
是幸存函数的应用吗
因为也不太了解幸存函数该如何用
麻烦版上的高手帮我解答^^
在此先谢谢大家了!!
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1F：推 jasonkeen:交大考题喔…照定义写就好了，不知道幸存函数也没关系。 04/05 02:14