Poisson distribution (redirected from Law of rare events)

Poisson distribution

A statistical method developed by the 18th century French mathematician S. D. Poisson, which is used for predicting the probable distribution of a series of events. For example, when the average transaction volume in a communications system can be estimated, Poisson distribution is used to determine the probable minimum and maximum number of transactions that can occur within a given time period.

---

(mathematics)

Poisson distribution - A probability distribution used to describe the occurrence of unlikely events in a large number of independent trials. Poisson distributions are often used in building simulated user loads.