Expected Value Calculator
Expected Value: a planned Super Calculator tool. Covers outcome and probability pairs. Stub page while the tool and its worked example are prepared. Scope is.
Expected Value Calculator is a planned calculator in the mathematics section of Super Calculator, covering probability and combinatorics.
What this calculator will compute
Inputs: outcome and probability pairs and stake or cost (optional).
Outputs: expected value, variance, standard deviation, expected profit or loss and probability sum check.
Formula, recorded as scope and not yet verified against a primary source: E[X] = sum(x_i * p_i) for a discrete random variable, requiring the probabilities to sum to one. Variance follows as E[X^2] - (E[X])^2. Expected value of a wager is sum(payoff * probability) minus the stake.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
The stub carries noindex, nofollow and is excluded from the sitemap.