Question: Suppose A and B are random variables with the following properties: E(A) = 5, V(A) = 16, E(B) = 2, V(B) = 4. What is

Suppose A and B are random variables with the following properties: E(A) = 5, V(A) = 16, E(B) = 2, V(B) = 4. What is E(A-B)

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