# Expected Value Calculator

This expected value calculator helps you to quickly and easily calculate the expected value (or mean) of a discrete random variable X. Enter all known values of X and P(X) into the form below and click the "Calculate" button to calculate the expected value of X. Click on the "Reset" to clear the results and enter new values.

### This calculator uses the following basic formula:

E(X) = μX = x1P(x1) + x2P(x2) + ... + xnP(xn)

E(X) = μX =
n
x i * P(xi)
i = 1

Where:

E(X)  is the expected value of the random variable X ,

μX  is the mean of X ,

∑  is the summation symbol ,

P(xi)  is the probability of outcome xi ,

xi  is the i th outcome of the random variable X ,

n  is the number of possible outcomes ,

i  is a possible outcome of the random variable X.

You may also be interested in our Point Estimate Calculator

Expected Value (EV) Calculator

This expected value calculator helps you to quickly and easily calculate the expected value (or mean) of a discrete random variable X. Enter all known values of X and P(X) into the form below and click the "Calculate" button to calculate the expected value of X. Click on the "Reset" to clear the results and enter new values.

### This calculator uses the following basic formula:

E(X) = μX = x1P(x1) + x2P(x2) + ... + xnP(xn)

E(X) = μX =
n
x i * P(xi)
i = 1

Where:

E(X)  is the expected value of the random variable X ,

μX  is the mean of X ,

∑  is the summation symbol ,

P(xi)  is the probability of outcome xi ,

xi  is the i th outcome of the random variable X ,

n  is the number of possible outcomes ,

i  is a possible outcome of the random variable X.

You may also be interested in our Point Estimate Calculator

### Enquire now

Give us a call or fill in the form below and we will contact you. We endeavor to answer all inquiries within 24 hours on business days.