# Thread: expected value and variance

1. ## expected value and variance

let X be a random variable with finite nonzero variance. by using properties of expected value and variance, verify in detail that the mean and variance of X*- the standardized random variable corresponding to X-are 0 and 1

2. Originally Posted by durham2
let X be a random variable with finite nonzero variance. by using properties of expected value and variance, verify in detail that the mean and variance of X*- the standardized random variable corresponding to X-are 0 and 1