Template:Aw mean

The Mean or MTTF
The mean, $$\overline{T}$$, of the 2-parameter Weibull pdf is given by:


 * $$\overline{T}=\eta \cdot \Gamma \left( \frac{1}{\beta }+1 \right)$$

where $$\Gamma \left( \tfrac{1}{\beta }+1 \right)$$ is the gamma function evaluated at the value of $$\left( \tfrac{1}{\beta }+1 \right)$$.