Question: Question If Var(X + Y) = 3, Var(X - Y) = 1, E[X] = 1, and E[Y] = 2, then what is E[XY]? Possible Answers

Question If Var(X + Y) = 3, Var(X - Y) =

1, E[X] = 1, and E[Y] = 2, then what is E[XY]?

Question If Var(X + Y) = 3, Var(X - Y) = 1, E[X] = 1, and E[Y] = 2, then what is E[XY]? Possible Answers A -3/2 B 1/2 C 3/2 D 5/2 E 3

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