Contents
- Index
Impossible Region
The impossible region in the skewness-kurtosis plot represents values for the skewness and kurtosis that cannot occur. For all distributions, kurtosis ³ skewness * skewness + 1. This implies kurtosis ³ 1. The border of the impossible region, where kurtosis = skewness * skewness + 1, corresponds to the 2-point distribution. The 2-point distribution takes on 2 values, x and y, where x occurs with probability p and y occurs with probability 1-p.