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what is E[X]? E[Y]? Var(X)? Var(Y)? E[X+Y]? Var(X+Y)? What is the probability that X+Y takes on the value of 5?

what is E[X]?

E[Y]?

Var(X)?

Var(Y)?

E[X+Y]?

Var(X+Y)?

What is the probability that X+Y takes on the value of 5?

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