Binomial probability calculator and distribution chart Binomial probability calculator and distribution chart

Input and settings

Input and settings

Use whole counts, 0 ≤ k ≤ n ≤ 100,000 and 0% ≤ p ≤ 100%. Interval bounds include both endpoints. With n = 0, zero successes has probability 1.

Binomial probability calculator and distribution chart

Calculate exact, cumulative and interval probabilities for independent trials. See expected successes, variance and a distribution chart, then export the report.

A mathematical model of independent trials with two outcomes and a constant success probability. It does not estimate that probability or validate independence from real observations.

Quick start

Binomial probability calculator and distribution chart

  1. Enter the number of trials and success probability.
  2. Choose exact, cumulative or inclusive interval probability.
  3. Calculate, inspect the chart and export the results.

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