Search and Expand Hybrid Odd Lomax Fréchet Distribution Properties, Simulation, with Application
摘要
Traditional statistical distributions often struggle with modeling asymmetric or extreme data, particularly when data is heavily skewed or concentrated in one tail. Classical distributions like the normal or exponential distributions fail to provide accurate representations in such cases, leading to poor model fitting and inadequate predictions. This issue is especially evident in applications involving survival analysis, insurance, and extreme value modeling, where the data exhibit irregular patterns that require more flexible distribution families. To address these limitations, this study proposes a new probability distribution, the Hybrid Odd Lomax Fréchet (HOLFr), according to the Odd Lomax family, which is a model for a new probability distribution consisting of four parameters, which introduces greater flexibility and accuracy in modeling real-world data with extreme characteristics. The new distribution expands upon the Odd Lomax family by incorporating additional parameters, allowing it to better handle skewness and kurtosis in complex datasets. In addition, the study will present a number of statistical properties of the hybrid distribution such as the moment generating function, survival function, risk function, Quintile function, pdf expansion, ordered statistics as well as other statistical properties that represent a few of the many mathematical and statistical features of the hybrid distribution. The parameters of the two models were also estimated using the maximum likelihood function. In order to obtain a distribution that is highly flexible to accommodate different types of real data, a Monte Carlo simulation was conducted to demonstrate the efficiency of estimating the unknown parameters of the new distribution using the maximum likelihood method. The proposed HOLFr distribution demonstrated significant flexibility and robustness in modeling asymmetric and extreme data. Through Monte Carlo simulations and real-world applications, the new distribution was compared against established models, showing superior performance in terms of flexibility and goodness-of-fit criteria such as AIC, BIC, CAIC, and HQIC. The results highlight the effectiveness of HOLFr in fitting both positively and negatively skewed data, making it a valuable tool for survival analysis and other areas requiring robust statistical models. The HOLFr distribution is a promising extension that offers enhanced accuracy in real-world data modeling, as demonstrated by its application to survival data.