
doi: 10.5539/ijsp.v6n4p48
We propose and study the so-called extended generalized gamma geometric distribution. The proposed distribution has five parameters and it can be accommodate increasing, decreasing, bathtub and unimodal shaped hazard functions. The new distribution has a large number of well-known lifetime special sub-models such as the generalized gamma geometric, Weibull geometric, gamma geometric, exponential geometric, Rayleigh geometric, half-normal geometric among others. We provide a mathematical treatment of the new distribution including explicit expressions for moments, moment generating function, mean deviations, reliability and order statistics. The method of maximum likelihood and a Bayesian procedure are adopted for estimating the model parameters. Finally, an application of the new distribution is illustrated in a real data sets.
Lifetime distribution, Distribuição vitalícia, Generalized gamma distribution, Estimativa de máxima verossimilhança, Distribuição gama generalizada, Distribuição geométrica Weibull, Bimodalidade, Maximum likelihood estimation, Weibull geometric distribution, Bimodality
Lifetime distribution, Distribuição vitalícia, Generalized gamma distribution, Estimativa de máxima verossimilhança, Distribuição gama generalizada, Distribuição geométrica Weibull, Bimodalidade, Maximum likelihood estimation, Weibull geometric distribution, Bimodality
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