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

The mean value of the triangular law can then be computed as $\mu = \dfrac{x_{\rm max}+x_{\rm min}+
x_{\rm mode}}{3}$  while its variance can be written as $\sigma^2=\dfrac{(x^{2}_{\rm max}+
x^{2}_{\rm min}+x^{2}_{\rm mode}-x_{\rm max}x_{\rm min}-x_{\rm max}x_{\rm mode}-x_{\rm mode}
x_{\rm min})}{18} $.

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