Fisher-Snedecor law

The tables 9 , 10 , 11 , 12 and 13 give, each table for a threshold α, the values F _α (ν ₁ , ν ₂ ) of the Fisher-Snedecor variable F (ν ₁ , ν ₂ ) at ν ₁ and ν ₂ degrees of freedom, such that : $\text{Prob}\left\{F\left({\nu }_1,{\nu }_2\right)⩾F_{\text{α}}\left({\nu }_1,{\nu }_2\right)\right\}=\text{α}$