Tolong jelaskan mengenai Distribution dari Uji kuadrat-chi Pearson dalam bahasa sunda

The null distribution of the Péarson statistic with j rows and k columns is approximated by the chi-square distribution with

(k − 1)(j − 1) degrees of freedom.

This approximation arises as the true distribution, under the null hypothesis, if the expected value is given by a multinomial distribution. For large sample sizes, the central limit theorem says this distribution tends toward a certain multivariate normal distribution.