Statistics & Probability
Expected Value Calculator
Lets users solve and check expected value instantly with formula, steps and examples — no manual math.
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Your result
Expected value
25
Expected value = Σ(value × probability) = 25.000
Probability total
1
Should equal 1
About this calculator
Expected value = Σ(outcome × probability) — the long-run average of a random variable. Enter each outcome's value and probability; the probabilities should sum to 1.
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