Problem 14. (2.5 %) Let X and Y be two continuous random variables. Then,(A) E[XY] = E[X]E[Y](B) E[X
問題詳情
Problem 14. (2.5 %) Let X and Y be two continuous random variables. Then, (A) E[XY] = E[X]E[Y] (B) E[X2 + Y2] = E[X2] + E[Y2] (C)fX+Y(x+y)=fX(x)fY(y) (D) var(X+Y)=var(X)+var(Y)