If Prove that the expected value of Z = 0 and that the variance of Z = 1
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Hello, Originally Posted by mibamars If Prove that the expected value of Z = 0 and that the variance of Z = 1 Let and You want to prove that has an expected value of 0 and a variance of 1. Use these properties : (a is a constant) (1) (2) (3) (4) But since , we can conclude that E(Z)=0. Now try to do it with the variance. It's easy with the formulae I gave above !
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