The Discrete Type-II Half-Logistic Exponential Distribution with Applications to COVID-19 Data

被引:12
作者
Ahsan-ul-Haq, Muhammad [1 ]
Babar, Ayesha [2 ]
Hashmi, Sharqa [3 ]
Alghamdi, Abdulaziz S. [4 ]
Afify, Ahmed Z. [5 ]
机构
[1] Univ Punjab, Coll Stat & Actuarial Sci, Lahore, Pakistan
[2] Minhaj Univ Lahore, Sch Stat, Lahore, Pakistan
[3] Lahore Coll Women Univ, Dept Stat, Lahore, Pakistan
[4] King Abdulaziz Univ, Coll Sci & Arts, Dept Math, POB 344, Rabigh 21911, Saudi Arabia
[5] Benha Univ, Dept Stat Math & Insurance, Banha 13511, Egypt
关键词
COVID-19; data; Discretization; maximum likelihood estimation; type II half logistics exponential; simulations;
D O I
10.18187/pjsor.v17i4.3772
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We propose a new two-parameter discrete model, called discrete Type-II half-logistics exponential (DTIIHLE) distribution using the survival discretization approach. The DTIIHLE distribution can be utilized to model COVID-19 data. The model parameters are estimated using the maximum likelihood method. A simulation study is conducted to evaluate the performance of the maximum likelihood estimators. The usefulness of the proposed distribution is evaluated using two real-life COVID-19 data sets. The DTIIHLE distribution provides a superior fit to COVID-19 data as compared with competitive discrete models including the discrete-Pareto, discrete Burr-XII, discrete log-logistic, discrete-Lindley, discrete-Rayleigh, discrete inverse-Rayleigh, and natural discrete-Lindley.
引用
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页码:921 / 932
页数:12
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