# Poisson Distribution

> Source: https://sukruyusufkaya.com/en/glossary/poisson-dagilimi
> Updated: 2026-05-13T21:00:23.271Z
> Type: glossary
> Category: matematik-istatistik-optimizasyon
**TLDR:** A discrete distribution used to model the number of events occurring within a fixed interval of time or space.

<p>The Poisson distribution is used to model how many countable events occur within a fixed interval of time or space. Examples include the number of calls received in a minute, the number of errors on a server, or the number of events occurring in a specific region. It is especially useful when events are assumed to occur independently at a roughly constant average rate. The Poisson distribution is highly practical in operations analytics, traffic modeling, and event intensity analysis.</p>