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Statistics

Discrete Expected Value Calculator

Find a weighted expected outcome from values and probabilities.

Data stays on this deviceConvention explained below

Data and assumptions

Runs on your device

STATISTICAL RESULT

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter numbers, probabilities.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Expected value = sum(value × probability). Probabilities must sum to 1.

A WORKED EXAMPLE

Using numbers = 2, 4, 6, 8, probabilities = .1, .2, .3, .4, the result is 6. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

A descriptive or probability calculation under the stated assumptions. Check the sample design and model before interpreting results.

Common questions

Which inputs does this calculation need?

Find a weighted expected outcome from values and probabilities. Enter numbers, probabilities. The filled example is editable and is not a saved personal record.

How should I interpret the result?

A descriptive or probability calculation under the stated assumptions. Check the sample design and model before interpreting results.

Methodology maintained by ClarityKit. How these tools are built and checked.