The Determination of Sampling Distributions and Moment Generating Functions by Solving Differential Equations
通过求解微分方程确定抽样分布与矩母函数
Summary A method of obtaining sampling distributions and moment generating functions by solving differential equations is introduced. This method is demonstrated in finding the distribution of the difference of two gamma variates. A method closely related to the above is used in obtaining the moment generating functions of certain Pearson-type distributions.