# Poisson Distribution Formula | Definition

### Poisson Distribution Definition:

The Poisson distribution is used when n is greater then p and the independent variable occur over a period of time.  The Poison distribution was first used in Agriculture.

The Poisson distribution these requirements

• Every Event is Independent
• Must be random
• Random Variables happen over an interval
Example: time, area, distance, volume, etc…
• Uniformed Distribution over the interval

### Poisson Distribution Formula:

Lean how to do a Poisson Distribution on your calculator at Poisson Distribution TI-84 | TI-83 Example.