Distribution function technique (1)
2008-03-25 4:17 am
If X1 and X2 are independent random variables having exponential densities with the parameters P1 and P2, use the distribution function technique to find the probability density of Y=X1+X2 when P1=P2.
回答 (1)
2008-03-25 6:46 am
✔ 最佳答案
The trick is to equate the probabilities of equivalent events and using joint density function:圖片參考：http://i187.photobucket.com/albums/x22/cshung/70080324031461.jpg
圖片參考：http://i187.photobucket.com/albums/x22/cshung/70080324031462.jpg
參考: 從不抄襲。
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