Three-Inflated Poisson Distribution and its Application in Suicide Cases of India During Covid-19 Pandemic

Tousifur Rahman, Partha Jyoti Hazarika, M. Masoom Ali and Manash Pratim Barman ()
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Tousifur Rahman: Dibrugarh University
Partha Jyoti Hazarika: Dibrugarh University
M. Masoom Ali: Ball State University
Manash Pratim Barman: Dibrugarh University

Annals of Data Science, 2022, vol. 9, issue 5, No 12, 1103-1127

Abstract: Abstract Inflated models are generally used whenever there is an excess number of frequencies at particular count. In this study, a three-inflated Poisson (ThIP) distribution is proposed by mixing the Poisson distribution and a distribution to a point mass at three. Some of its distribution properties and reliability characteristics are studied. A simulation study is carried out to see the performance of the MLEs. In India Covid-19 implications on mental health have been abysmal. Covid-19 related suicide data of India during lockdown to the first gradual relaxation of the terms of the total lockdown (unlocking 1.0) are used to examine the appropriateness of the proposed distribution. Likelihood ratio test is used for discriminating between Poisson and the proposed distribution.

Keywords: Three-inflated Poisson distribution; Inflated; MLE; Health; Covid-19; 60E05; 60E10; 62F10 (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s40745-022-00372-1

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