Pearson Diagrams for Truncated Normal and Truncated Weibull Distributions
研究了双截断正态分布和右截断威布尔分布的偏度和峰度，发现前者位于皮尔逊分布系统的I型区域，后者可能位于I、III或VI型区域。
The skewness and kurtosis of doubly truncated normal distributions and right truncated Weibull distributions are studied. The former lie in the type I region and the latter in type I, type III or type VI regions in the Pearson system of distributions.