Suppose E[Y|X]=1. Show Cov(Y,X)=0.?

Please help!!

EDIT: GOT IT, nevermind :)

Printable View

- Sep 17th 2011, 07:14 PMAzaleaSuppose E[Y|X]=1. Show Cov(Y,X)=0.?
Suppose E[Y|X]=1. Show Cov(Y,X)=0.?

Please help!!

EDIT: GOT IT, nevermind :) - Sep 18th 2011, 04:03 AMSpringFan25Re: Suppose E[Y|X]=1. Show Cov(Y,X)=0.?
just for fun, since the OP has the answer anyway:

first:

and

Then