The Marshall-olkin Inverse Lomax Distribution (MO-ILD) with Application on Cancer Stem Cell
Obubu Maxwell *
Department of Statistics, Nnamdi Azikiwe University, Awka, Nigeria.
Angela Unna Chukwu
Department of Statistics, University of Ibadan, Ibadan, Nigeria.
Oluwafemi Samuel Oyamakin
Department of Statistics, University of Ibadan, Ibadan, Nigeria.
Mundher A. Khaleel
Department of Computer Science and Mathematics, Tikrit University, Iraq.
*Author to whom correspondence should be addressed.
Abstract
A new compound distribution called the Marshall-Olkin Inverse Lomax distribution (MO-ILD) was proposed, extending the inverse Lomax distribution by adding a new parameter to the existing distribution, leading to greater flexibility in modeling various data types. Its basic statistical properties were derived and model parameters estimated using the method of maximum likelihood. The Proposed distribution was applied to Cancer Stem Cell data and compared to the Marshall Olkin Flexible Weibull Extension Distribution (MO-FWED), and the Marshall-Olkin exponential Weibull distribution (MO-EWD). The Marshall-Olkin Inverse Lomax distribution provided a better fit than the Marshall Olkin Flexible Weibull Extension Distribution, and the Marshall-Olkin exponential Weibull distribution based on log-likelihood AIC, CAIC, BIC and HQIC values.
Keywords: Marshall-olkin inverse Lomax distribution, inverse Lomax, distributions, quantile function, hazard functions, survival function, maximum likelihood estimate.