![What is Kolmogorov's D statistic?](https://blogs.sas.com/content/iml/files/2019/05/KolmogorovD1-640x336.png)
Have you ever run a statistical test to determine whether data are normally distributed? If so, you have probably used Kolmogorov's D statistic. Kolmogorov's D statistic (also called the Kolmogorov-Smirnov statistic) enables you to test whether the empirical distribution of data is different than a reference distribution. The reference distribution