👉 Non-normality is a statistical concept in statistics that refers to a distribution of data that deviates from being normal. This means that the mean and standard deviation of the distribution are not equal, and there is an excess of extreme values compared to the middle or expected values. For example, consider a set of data points where the mean is 50 and the standard deviation is 10, but there are outliers with extremely high or low values. This would violate the normality assumption, as
