The properties of Mathematical Expectation are
A. E(C) = 0, where C is constant
B. If X and Y are random variables, then E(X+Y) = E(X) + E(Y)
C. Var(X ± C) = Var(X), where C is constant
D. If X and Y are independent random variables, then E(XY) = E(X).E(Y)
E. Var(aX) = a.Var(X), where a is constant
Choose the correct answer from the options given below:
1
A, B and D only
2
B, D and E only
3
B, C and D only
4
B, C and E only