BBy Bot
Jun 09'24

Exercise

A random variable [math]X[/math] has the distribution

[[math]] p_X = \pmatrix{ 0 & 1 & 2 & 4 \cr 1/3 & 1/3 & 1/6 & 1/6 \cr}\ . [[/math]]

Find the expected value, variance, and standard deviation of [math]X[/math].