# Combined p-Values

${\displaystyle X^{2}=-2\sum _{i=1}^{k}\log p_{i}}$
${\displaystyle p_{i}}$ is the p-Value of the ${\displaystyle i}$th of ${\displaystyle k}$ tests, and
${\displaystyle p=\Pr(\chi _{2k}^{2}\geq X^{2})}$