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#1 2009-12-01 09:48:41

agsty8
Member
Registered: 2009-12-01
Posts: 1

Joint PDF and conditional expectation and covariance

I think I have found the covariance to be 1/9 but I need help with the conditional expectation of X given Y

f(x,y) = 1/2 if 0<=y<=x<=2

0 otherwise

a.) find the conditonal expectation of X given Y
b.) find the covariance between X and Y

Can anyone help with a.) and b.) ??

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