## STATISTICS Course

# Chi-square distribution

This is a distribution mainly used in statistics.
The Chi-square distribution/`Loi du Khi-deux`

noted as $\chi ^{2}(k)$ or $\chi _{k}^{2}$
is taking a degree a freedom (`degré de liberté`

) $k$.

The Chi-square distribution is a sum of $k$ variables following a standard distribution.

You may read the wiki or the associated page in the statistic course.