Expected Value $$ E[X] = \sum_x x \cdot P(X=x) \quad \text{(discrete)} $$ $$ E[X] = \int_{-\infty}^{\infty} x \cdot f(x) dx \quad \text{(continuous)} $$ Variance $$ \text{Var}(X) = E[(X - E[X])^2] = E[X^2] - (E[X])^2 $$ Python 1import numpy as np 2 3data = np.random.normal(0, 1, 10000) 4 5mean = np.mean(data) 6variance …