double integration

2012-12-02 10:26 pm
Suppose two random variables X and Y have the following joint probability density function: f(x,y)=3(x-2xy+y^2), 0=<x=<1, 0=<y=<1.

(a) Find the probability that Y>=2X

(b) Find E(X), E(Y), Var (X), Var (Y)

(c) Show that Corr(X,Y)= -(30)^0.5/12, Corr means correlation.

回答 (1)

2012-12-02 11:41 pm
✔ 最佳答案
-----------------------------------------------------------------------------------------------

圖片參考:http://i1090.photobucket.com/albums/i376/Nelson_Yu/int-708.jpg


收錄日期: 2021-04-23 23:26:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121202000051KK00187

檢視 Wayback Machine 備份