Expected Value Calculator
Calculate the expected value (weighted average) of random outcomes.
Outcomes & Probabilities
+0
Average outcome over many trials
E[X]
+0
Variance
0
Std Dev
0
Interpretation
This is a fair gamble. On average, you break even over the long run.
Expected Value
Expected value is the sum of each outcome multiplied by its probability. It represents the long-run average result.
E[X]
Variance
About the Expected Value Calculator
This expected value calculator solves mathematical and statistical problems using standard formulas. Calculate expected value (EV) for random variables.
Use for homework, data analysis, exam prep, or quick verification of manual calculations.
Adjust the inputs above to model your specific scenario with the Expected Value Calculator.
Explore More
Related Calculators
Bayes Theorem Calculator
Calculate conditional probability P(A|B) using priors.
Combination Calculator
Calculate selections with or without repetition (nCr).
Odds Calculator
Convert between probability, decimal, and moneyline odds.
Permutation Calculator
Calculate arrangements with or without repetition (nPr).
Probability Calculator
Calculate simple, independent, and conditional probabilities.
ANOVA (One-Way)
Compare means of 3+ groups using F-test.