Gamma Distribution (Survival)

Definition

Gamma Distribution for survival: Another generalization of exponential.

$f(t)=\frac{{\lambda }^{\alpha }{t}^{\alpha -1}{e}^{-\lambda t}}{\Gamma (\alpha )},t>0$

$E(T)=\frac{\alpha }{\lambda },V(T)=\frac{\alpha }{{\lambda }^2}$

Related

• Exponential Distribution (Survival)
• Parametric Survival Distributions Cheatsheet