hypergeometric series

例句：

1. 1.In probability theory, the hypergeometricseries is used to model the number ofways to choose k items from a largerset of n items without considering order.
   在概率论中，超几何级数用于模拟从n个物品中选择k个而不考虑顺序的方式。
2. 2. The hypergeometric series can be used to calculate theexpected value of a binomial distributionwhen the number of trials is large.
   当试验次数很大时，可以使用超几何级数来计算二项分布的期望值。
3. 3. Instatistics, the hypergeometric series isused to analyze the probability of success ina binomial experiment where the outcomedepends on the choice of one out ofseveral possible outcomes.
   在统计学中，超几何级数用于分析二项实验中成功的概率，其中结果取决于选择一种可能结果之一。