題組內容
1.1 (10%) Let the random variable X have the pmf $f(x) = \frac{(|x| + 1)^2}{9}$, x = -1, 0, 1
(b) \( (5\%) \) Find \( E\left(3X^{2} - 2X + 4\right) \).
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1.1 (10%) Let the random variable X have the pmf $f(x) = \frac{(|x| + 1)^2}{9}$, x = -1, 0, 1
(b) \( (5\%) \) Find \( E\left(3X^{2} - 2X + 4\right) \).