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If X and Y Are Random Variables with Var(X)= 7

Question 123

Multiple Choice

If X and Y are random variables with Var(X) = 7.5,Var(Y) = 6 and Cov(X,Y) = 4,then Var(2X + 3Y) is:

A) 33
B) 37
C) 88
D) 132

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