What is the equation for finding E(S2)

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http://i41.tinypic.com/2czc6x5.png

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- November 19th 2011, 09:07 AMHelpmeplease1Mean of a tree diagram
What is the equation for finding E(S2)

Thanks

http://i41.tinypic.com/2czc6x5.png - November 19th 2011, 09:43 AMPlatoRe: Mean of a tree diagram
- November 20th 2011, 03:51 AMHelpmeplease1Re: Mean of a tree diagram
- November 20th 2011, 04:10 AMPlatoRe: Mean of a tree diagram
- November 20th 2011, 04:45 AMHelpmeplease1Re: Mean of a tree diagram
So is E(S2) = E(S2|S0)