so cov(x,y) = -5*2/3 = -10/3
so Var(4X - 2Y + 7) = 16Var(x) + 4Var(Y) - 16Cov(X,Y)
= 16*4 + 4*25 - (-16*10/3)
= 652/3
Show steps, thanks ·Additional Problem 13. For random variables X and Y it is given that...
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