# A Discussion On E(X) and Var(X) of X

Not what you're looking for? Search our solutions OR ask your own Custom question.

Let x be a random variable with the following probability distribution:

Value x of X......P(X = x)

........-1...............0.05

.........0...............0.05

.........1...............0.60

.........2...............0.05

.........3...............0.15

.........4...............0.10

Find the expectation E(X) and variance var(X) of X.

Â© BrainMass Inc. brainmass.com May 24, 2023, 1:13 pm ad1c9bdddfhttps://brainmass.com/statistics/probability/a-discussion-on-e-x-and-var-x-of-x-13707

#### Solution Summary

This solution is comprised of calculations to help determine E(X) and Var(X). It is provided in an attached Word document.

$2.49