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Question: iii if b a with pb gt 0 then...

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iii. If B ⊂ A with P(B) > 0 then A and B can be independent.

 

iv. Let X be a random variable with a Poisson distribution. We have that: E(X) > Var(X).

 

v. If Corr(X, Y ) = 0 then: Var(X − Y ) = Var(X) + Var(Y ).

 

 

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