Generalized exponential distribution: Existing results and some recent developments

Mudholkar and Srivastava [25] introduced three-parameter exponentiated Weibull distribution. Two-parameter exponentiated exponential or generalized exponential dis-tribution is a particular member of the exponentiated Weibull distribution. Generalized exponential distribution has a right skewed unimodal density function and monotone hazard function similar to the density functions and hazard functions of the gamma and Weibull distributions. It is observed that it can be used quite e®ectively to analyze lifetime data in place of gamma, Weibull and log-normal distributions. The genesis of this model, several properties, di®erent estimation procedures and their properties, es-timation of the stress-strength parameter, closeness of this distribution to some of the well known distribution functions are discussed in this article