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Math · Statistics And Probability
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4. Let W and Z be random variables with the following properties: E(Z) 3 Var (Z) 0.6 Cov W, Z) 0.3 Let X 5W-3Z +4 A. Find the expected val of X, EX) B. Find the Var of x, o: Var x) C. Find E WZ D. Are W and Zindependent? Why or why not? Explain

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