multinomial

例句：

1. 1. The multinomial is a mathematical expression that describes the behavior of a system with multiple variables.
   多项式是一种数学表达式，用于描述具有多个变量的系统的行为的。
2. 2. In economics, the multinomial model is used to analyze the decision-making process of consumers.
   在经济学中，多变量模型被用来分析消费者的决定过程。
3. 3. The multinomial distribution is a probability distribution that assumes that each outcome is equally likely.
   多项分布是一种概率分布，假设每个结果都是等可能的。