Poisson Distribution Calculator

This function computes probabilities for a Poisson random variable X = poisson(λ)

Rate λ Value k
λ = k =

Exact Poisson probabilities (these may take a while if λ is large)
P(X=k): P(X<=k):
*   *   *
Poisson probabilities computed by normal approximation
(with the help of Central Limit Theorem)
P(X=k): P(X<=k):

Questions or comments? E-mail to Nikolai Chernov.