If X and Y are independent then SD (X ? Y) is________________?

A. SD(X)?SD(Y)

B. Var(X)+Var(Y)????????????????

C. If Y=?8X ? 5 and SD of X is 3, then SD of Y is

D. SD(X)+SD(Y)

E. SD(X)+SD(Y)???????????????

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.