Expected Value E(X) Calculator

Calculate expected mathematical payoff E(X) = Σ (xᵢ × P(xᵢ)) from outcomes and probability weights.

How It Works & Processing Standards

Enter values above to calculate results automatically. Check each input field for guidance and units.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

Expected Value E(X) Calculator is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Expected Value E(X) Calculator

  1. 1
    Enter OutcomesType payoff values list.
  2. 2
    Enter ProbabilitiesType probability weights (summing to 1).
  3. 3
    View Expected ValueRead calculated mathematical expectation.

Common Use Cases

  • Evaluating net expected value of commercial insurance policies
  • Casino game and raffle ticket probability expectation analysis
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