Which of the following is equivalent to Var(X)Var(X)Var(X)?
E[X2]+(E[X])2E[X^2] + (E[X])^2E[X2]+(E[X])2
E[X2]−(E[X])2E[X^2] - (E[X])^2E[X2]−(E[X])2
E[X−E[X]]E[X - E[X]]E[X−E[X]]
E[X]2E[X]^2E[X]2