THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
Suppose X and Y are two random variables with E(X)= 1.50,E(Y)= 0.55,E(XY)= 0.80,Var(X)= 0.25,and Var(Y)= 0.2475.
-What is the value of E(2X - 3Y)?

Name: THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING: Suppose X and Y are two random variables with E(X)= 1.50,E(Y)= 0.55,E(XY)= 0.80,Var(X)= 0.25,and Var(Y)= 0.2475. -What is the value of E(2X - 3Y)?
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Question

Quizplus · Accepted Answer

E(2X - 3Y) = 2E(X) - 3E(Y) = 2(1.50) - 3(0.55) = 3 - 1.65 = 1.35.