推 goshfju:即求 E(Y|X=x) 03/20 23:17
→ rainyuhtree:謝謝 03/21 17:10
請教一下第四題
given the two random variables X and Y which have the joint density
f(x,y) = xe^[-x（1+y）] for x>0 and y>0
= 0 elsewhere
find the regression equation of Y on X
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