The aim of this study is to propose a generalized odd log-logistic Maxwell mixture model to
analyze the effect of gender and age groups on lifetimes and on the recovery probabilities of …

The presence of bimodality, heteroskedasticity, zero-inflation and nonlinear effects in
covariables is common in several real data applications. In this context, new regressions are …

We define a four-parameter extended Rayleigh distribution, and obtain several
mathematical properties including a stochastic representation. We construct a regression …

We propose two new regressions based on the generalized odd log-logistic log-normal
distribution allowing for positive and negative skewness to model bimodal data. The first one …

A heteroscedastic regression based on the odd log-logistic Marshall–Olkin normal
(OLLMON) distribution is defined by extending previous models. Some structural properties …

Three new mixed-effects regressions models using an extended Weibull distribution are
defined for repeated measures, and their parameters are estimated by maximum likelihood …