Statistics How To

Expected Value Calculator

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4/20/15 We are experiencing some issues with the site calculator below. As a temporary fix, please use the above calculator!

Input the number of trials (n or X) into the “X” box, then type the probability into the “P(x)” box. Click “Calculate Expected Value.”
for multiple probabilities, click the “More” button to enter more X/P(X)


Sum P(x):

Expected Value:


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Statistical concepts explained visually - Includes many concepts such as sample size, hypothesis tests, or logistic regression, explained by Stephanie Glen, founder of StatisticsHowTo.

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