Expanding Generalized Gamma Distribution (EGGD)

Abstract

In this paper we introduce a new distribution that is dependent on the Pearson type three distribution (gamma distribution)and we discuss some of properties like that the rth moment, , rth moment about the origin , mean ,moment generated , reliability , hazard functions , coefficient of (skeweness, variance , kurtosis) ,with  estimation the parameter by using the moment estimation and maximum likelihood estimation .

Keyword: maximum likelihood estimation, moment estimation , gamma distribution ,incomplete gamma function