Random variable X and Y have joint PDF Answer the following questions (a) What are E[X] and

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Random variable X and Y have joint PDF
Random variable X and Y have joint PDF
Answer the following

Answer the following questions
(a) What are E[X] and Var [X]?
(b) What are E[Y] and Var [Y]?
(c) What is Cov[X + Y]?
(d) What is E[X + Y]?
(e) What is Var[X + Y]?

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