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第四讲统计指标的计算与应用一、复习提要本章共五节，内容包括总量指标、相对指标、平均指标、变异指标的概念、分类、特点、运算及其应用。学习时要注意以下问题：1．统计指标的分类2．关于加权算术平均数根据分组资料，先将各组标志值乘以相应次数求得各组标志总量，并加总?
Lecture 4 Calculation and Application of Statistical Indicators I. Review Summary This chapter consists of five sections, which include the concept, classification, characteristics, operation and application of total quantity index, relative index, average index and variation index. Learn to pay attention to the following questions: 1. Classification of statistical indicators 2. About the weighted arithmetic average According to the grouping information, each group of flag value is multiplied by the corresponding number of times to obtain the total amount of each group flag, and add up?