Poisson distribution

The poisson distribution is a class of discrete probability distributions.

It's well suited for modeling various physical phenomena.

A basic introduction to the concept

A basic intro aimed for the general public here.

Example

Some example here.

Formal definition

Let X be a stochastic variable taking non-negative integer values with probability density function $P(X=k)=f(k)=e^{-\lambda }{\frac {\lambda ^{k}}{k!}}$. Then X follows the Poisson distribution with parameter $\lambda$.

See also

• Probability distribution
• Probability
• Probability theory

Related topics

• Exponential distribution

External links

• mathworld