A general class of trimodal distributions: properties and inference

R Vila, V Serra, MN Çankaya… - Journal of Applied …, 2024 - Taylor & Francis
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 …

Future Prediction for Tax Complaints to Turkish Ombudsman by Models from Polynomial Regression and Parametric Distribution

MN Çankaya, M Aydın - Chaos Theory and Applications, 2024 - dergipark.org.tr
The aim of this study is to forecast the amount of tax complaints filed with the Turkish
Ombudsman in the future and whether or not policymakers require a specific tax …

A new unit-bimodal distribution based on correlated Birnbaum-Saunders random variables

R Vila, H Saulo, F Quintino, P Zörnig - arXiv preprint arXiv:2408.00100, 2024 - arxiv.org
In this paper, we propose a new distribution over the unit interval which can be
characterized as a ratio of the type Z= Y/(X+ Y) where X and Y are two correlated Birnbaum …

Explicit Expressions for Most Common Entropies

S Nadarajah, M Kebe - Entropy, 2023 - mdpi.com
Entropies are useful measures of variation. However, explicit expressions for entropies
available in the literature are limited. In this paper, we provide a comprehensive collection of …

On the distribution of a random variable involved in an independent ratio

R Vila, N Balakrishnan… - … in Statistics-Theory and …, 2024 - Taylor & Francis
In this article, using inverse integral transforms, we derive the exact distribution of the
random variable X that is involved in the ratio Z= d X/(X+ Y) where X and Y are independent …