On the moments of the generalized Gompertz distribution

被引：5
|
作者：
Castellares, Fredy [1 ]
Lemonte, Artur J. [2 ]
机构：
[1] Univ Fed Minas Gerais, Dept Estat, Belo Horizonte, MG, Brazil
[2] Univ Fed Rio Grande do Norte, Dept Estat, Natal, RN, Brazil
来源：
APPLIED MATHEMATICAL MODELLING | 2019年 / 72卷
关键词：
Generalized Gompertz distribution; Moments; Power series expansions;
D O I：
10.1016/j.apm.2019.03.032
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The three-parameter generalized Gompertz distribution was introduced recently in the statistic literature as an extension of the well-known two-parameter Gompertz distribution. In addition, a closed-form expression for its moments is derived. However, we verify that this expression cannot be used for computing the moments, since the power series expansion is not convergent. We provide, therefore, a valid expression for the moments. (C) 2019 Elsevier Inc. All rights reserved.
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页码：420 / 424
页数：5
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