The Poisson Distribution Calculator

Nathan Sebhastian Posted Jun 22, 2023 0 min read

This calculator helps you find the individual and cumulative Poisson probabilities from a given random variable (x) and the average rate of success (μ).

You need to enter a value in the two textboxes below and hit the ‘Calculate’ button:

P(X = 4) = 0.09123

P(X < 4) = 0.08177

P(X ≤ 4) = 0.17299

P(X > 4) = 0.82701

P(X ≥ 4) = 0.91823

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