一、准确把握超几何分布的概念依据超几何分布的定义,可知超几何分布的模型是不放回抽样,同时在总体中只有两类物品.注意,是对哪一类物品的分布进行研究不能搞错,如抽取产品进行检验时,既可以研究合格品的分布,也可以研究不合格品的分布.由于是从总数为N件的物品(其中有M件不合 First, accurate grasp of the concept of hypergeometric distribution According to the definition of hypergeometric distribution, we know that the model of hypergeometric distribution is not put back to sampling, while in the overall there are only two types of items. Note that the distribution of which type of article can not Make mistakes, such as taking products for testing, you can not only study the distribution of qualified products, you can also study the distribution of non-conforming products.Because from the total number of N items (of which M pieces do not fit