The Gumbel model is a very popular statistical model due to its wide applicability for
instance in the course of certain survival, environmental, financial or reliability studies. In this …

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

The modality is an important topic for modelling. Using parametric models is an efficient way
when real data set shows trimodality. In this paper, we propose a new class of trimodal …

This article has two purposes. The first (main) goal is to introduce a new flexible distribution
defined in an infinite domain. The distribution in question is named the bimodal power …

Bimodal data arises from various sources in different disciplines, including but not limited to
financial, medical, environmental, technological, social, and educational fields. However …