```{include} /../core/dataserver/attribute/introducing_tstochastic_attribute/weibull_equation.md
```

The mean value of the Weibull law can then be computed as $\mu = \lambda\Gamma(1+1/k)+x_{\rm min}$ 
while its variance can be written as $\sigma^2=\lambda[\Gamma(1+2/k)-(\Gamma(1+1/k))^{2} ]$.

```{include} /../core/dataserver/attribute/introducing_tstochastic_attribute/weibull_figure.md
```