统计是从社会现象的质量与数量的辩证统一中研究它的数量方面。这种研究主要通过统计指标来反映,以表明社会现象的状况及发展规律在具体时间、地点、条件下的数量表现。 社会现象存在着复杂多样的类型,而反映和分析这些社会现象的统计指标也相应地有着复杂多样的类型。各种类型的统计指标有其不同的特点,发挥着不同的作用。因而对这些特点、功能、作用各不相同的统计指标加以分类,有着十分重要的意义,也是认识深化的必要前题。 Statistics are the number of aspects of the dialectical unity of quality and quantity of social phenomena. This kind of research is mainly reflected by statistical indicators to show the status of social phenomena and the quantitative performance of the law of development under specific time, place and condition. There are complex and diverse types of social phenomena, and the statistical indicators that reflect and analyze these social phenomena have correspondingly complex and diverse types. Various types of statistical indicators have different characteristics and play different roles. Therefore, it is of great significance to classify the statistical indicators with different characteristics, functions and functions, and is also a necessary prerequisite for deepening understanding.