Suppose f (x,,y) is a joint probability density function defined by:
f(x,y) = 2e^-(x+y) , 0<x<y
Show that f (x,,y) is a valid probability density function.
Find: P (Y < 3X).
Stat數學 難
2013-08-04 2:26 am
回答 (1)
2013-08-04 2:48 am
收錄日期: 2021-04-24 23:01:41
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https://hk.answers.yahoo.com/question/index?qid=20130803000051KK00234