Dispersive order is a type of variability order for comparing the variability in probability distributions. Star order compares the skewness of probability distributions. This work considers dispersive and star orders of extreme order statistics from dependent random variables following the proportional odds (PO) model. The joint distribution of the random variables is modeled with Archimedean copula. Numerical examples are provided to illustrate the findings.

翻译：分布顺序是用来比较概率分布的变异性的一种变化顺序。 恒星顺序比较概率分布的偏差。 这项工作考虑根据比例概率模型从依赖性随机变量中得出分散和恒星极端顺序统计。 随机变量的联合分布与Archimedean copula建模。 提供了数字示例来说明结果。