Question: Let X and Y be random variables with an expected value of 0 each. Moreover, we know that the variance of the variable X is

Let X and Y be random variables with an expected value of 0 each. Moreover, we know that the variance of the variable X is 3.3, the variance of the variable Y is 3.5 and \(Var (X+Y) = 6.7\ ). Calculate Cov(X,Y)

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