Igeragezwa rya chi-square
Igeragezwa ry'ibiharuro rigereranya incuro buri kazu kafashe n'izitezwe n/37. Rikoreshwa kugira ngo umenye ko uruziga rubogamye.
Mu nsiguro
Teranya (ivyabonetse − ivyitezwe)² / ivyitezwe kuri utuzuibikoreshoAkazuKimwe mu bibanza 37 bifise inomero kuri rotor. Kandi bita: slot, cup.Soma vyose → 37; ugereranye n'isaranganya rya chi-square ku rugero rw'ubwigengeubushakashatsiUrugero rw'ubwigengeIgitigiri c'agaciro kigenga mu giharuro. Ku igeragezwa rya chi-square ku tuzu 37 ni 36, kuko ibiharuro bitegerezwa gutera hamwe igiteranyo.Soma vyose → 36.
Karl Pearson yasohoye iryo geragezwa mu 1900, kandi kimwe mu ngero ziwe za mbere cari ukuzunguruka 26.306 kwa ruleti kwanditswe i Monte Carlo, asanga kudasa n'ukw'impfindo ku buryo bwo gukekwa. Isuzuma ryakurikiye ryerekanye ko abanyamakuru bakwanditse bari barahimbye kumwe.