Poisson Distribution Probability Mass Function (PMF) Calculator
Compute the probability mass function (PMF) for the Poisson distribution, given the expected number of event occurrences and the observed number of event occurrences. The Poisson distribution PMF identifies the likelihood that an associated discrete random variable will have an exact value, and is very useful for analytics studies that involve Poisson probabilities.
Please provide the necessary values, and then click 'Calculate'.