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Adamu Abubakar Umar

Publications (5)

On the Properties and Applications of a Transmuted Lindley-Exponential Distribution

Adamu Abubakar Umar, Innocent Boyle Eraikhuemen, Peter Oluwaseun Koleoso, Jerry Joel & Terna Godfrey Ieren · Asian Journal of Probability and Statistics · 2019

The Quadratic rank transmutation map proposed for introducing skewness and flexibility into probability models with a single parameter known as the transmuted parameter has been used by several authors and is proven to be useful. This article uses this method to add flexibility t...

Open access Research Article 10.9734/ajpas/2019/v5i330139

Estimation of a Shape Parameter of a Gompertz-lindley Distribution Using Bayesian and Maximum Likelihood Methods

Innocent Boyle Eraikhuemen, Abraham Iorkaa Asongo, Adamu Abubakar Umar & Isa Abubakar Ibrahim · Journal of Scientific Research and Reports · 2023

The Gompertz-Lindley distribution is an extension of the Lindley distribution with three parameters. It was found to be more flexible for modeling real life events. The distribution contains two shape parameters and a scale parameter. Despite the necessity of parameter estimation...

Open access Research Article 10.9734/jsrr/2023/v29i101800

Modelling Mother-To-Child HIV Transmission Rate in Nigeria Using an Exponentiated Exponential Inverse Exponential Distribution

Abraham Iorkaa Asongo, Innocent Boyle Eraikhuemen, Adamu Abubakar Umar & Terna Godfrey Ieren · International STD Research & Reviews · 2020

The act of adding extra parameters into existing distributions for increasing their flexibility or performance is a giant stride in the area of statistical theory and applications. Acquired immune deficiency syndrome (AIDS) is a disease caused by human immunodeficiency virus (HIV...

Open access Research Article 10.9734/ISRR/2020/v9i230116

On Making an Informed Choice between Two Lomax-based Continuous Probability Distributions Using Lifetime Data

Terna Godfrey Ieren, Samuel Oluwafemi OYAMAKIN, Abubakar Yahaya, Angela Unna Chukwu, Adamu Abubakar Umar & Samson Kuje · Asian Journal of Probability and Statistics · 2018

Probability distributions and their generalisations have contributed greatly in the modeling and analysis of random variables. However, due to the increased introduction of new distributions there has been a major problem with choosing and applying the right distribution for a gi...

Open access Research Article 10.9734/ajpas/2018/v2i228780

On the Properties and Applications of Transmuted Odd Generalized Exponential-Exponential Distribution

Jamila Abdullahi, Umar Kabir Abdullahi, Terna Godfrey Ieren, David Adugh Kuhe & Adamu Abubakar Umar · Asian Journal of Probability and Statistics · 2018

This article proposed a new distribution referred to as the transmuted odd generalized exponential-exponential distribution (TOGEED) as an extension of the popular odd generalized exponential- exponential distribution by using the Quadratic rank transmutation map (QRTM) proposed...

Open access Research Article 10.9734/ajpas/2018/v1i424552