# expected value and standard deviation of discrete variable

What is the mean (expected value) of the following probability distribution?

X 0 1 2 3 4 5

P(x) 0.17 0.15 0.25 0.08 0.15 0.2

Find the standard deviation for the probability distribution in #19.

© BrainMass Inc. brainmass.com June 3, 2020, 8:28 pm ad1c9bdddfhttps://brainmass.com/statistics/central-tendency/expected-value-and-standard-deviation-of-discrete-variable-139483

#### Solution Summary

The solution explains how to calculate the expected value and standard deviation of a discrete random variable.

$2.19