# Gamma distribution Mean (With a shape parameter α and a rate parameter β )

## Description

In probability theory and statistics, the gamma distribution is a two-parameter family of continuous probability distributions. The parameterization with α and β is more common in Bayesian statistics.The gamma distribution is the maximum entropy probability distribution for a random variable X for which E(X) is fixed and greater than zero.

Related formulas## Variables

E_{X} | Arithmetic mean ( expected value ) (dimensionless) |

α | Shape parameter ( α=k) (dimensionless) |

β | Rate parameter (β= 1/θ) (dimensionless) |