Practice By Tag: Random Variables and Expectation

Question: 2022 Winter Final - 23

1 . Is the following statement true or false? For any random variable $X$, $\mathbb{E}(X^2) = \mathbb{E}(X)\cdot \mathbb{E}(X)$.

(a)

The statement is neither true nor false

(b)

The statement is true

(c)

The statement is false