A Set of Probability Papers for the gamma Distribution

摘要

A set of three probability papers for the gamma distribution is presented, corresponding to large, intermediate and small values of the shape parameter. Together these papers enable the user to test for fit and estimate the parameters for any set of data, grouped or otherwise, believed to follow a two parameter gamma distribution. These inferences are made from at most two plots, and goodness of fit may be tested either visually or from the easily computed Kolmogorov statistic.