Hello there plz solve this math question 1) If Var(X− Y) = 2, Var(X + Y) = 4, E(X) = 3 and E(Y) = 1, than what isE(XY)?2) If X and Y are independent random variables with, E(X)=0= E(Y),show that Var(XY) = Var(X)× Var(Y).

Answered: 1) If Var(X-Y) = 2, Var(X+Y) = 4, E(X)…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter1: Functions

Section1.2: The Least Square Line

Problem 1E

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1) If Var(X-Y) = 2, Var(X+Y) = 4, E(X) = 3 and E(Y) = 1, than what is E(XY)? 2) If X and Y are independent random variables with, E(X)=0= E(Y), show that Var(XY) = Var(X) x Var(Y).