random variables with E(X) =2, E(Y)=3 ,V(X)=4,V(Y)=16. Find a)E(5X-Y) b)V(5X-Y) c)COV(3X+Y,Y) d)COV(X,5X
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Suppose X and Y are independent random variables with E(X) =2, E(Y)=3
,V(X)=4,V(Y)=16. Find
a)E(5X-Y)
b)V(5X-Y)
c)COV(3X+Y,Y)
d)COV(X,5X-Y)
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