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What is the primary problem of statistical grouping? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

The first problem of statistical grouping is to determine the purpose of the survey and select the grouping marks. Grouping marks, that is, the criteria or basis for distinguishing homogenous totals into different groups; the selection of grouping marks is the key to statistical grouping. Once the grouping mark is selected, it is bound to highlight the nature difference of the whole under the mark, and the other differences cannot be seen.

Statistical grouping is a statistical method that divides statistics into several components according to the needs of statistical research and certain signs. These components of the population are called "groups", that is, the small totals in the large population.

Through statistical grouping, the properties of the grouping marks of each unit in the same group are the same, while the properties of different groups are different. The grouping of the statistical population is determined by the "difference" characteristics of each unit in the statistical population.

Each unit in the statistical population, on the one hand, has the same property on one or more marks and can be combined in the population of the same nature; on the other hand, it has different properties on other signs, so it can be divided into several components with different properties.

Statistical grouping system

The overall grouping system of a series of interrelated and complementary groups formed after statistical grouping. There are two kinds of grouping system: parallel grouping system and compound grouping system. The parallel grouping system is the system formed after selecting two or more marks to simply group the whole time, and the compound grouping system is the system formed after the compound grouping.

Grouping flag selection

The selection of grouping marks is the key to statistical grouping. Grouping mark, that is, the standard or basis for distinguishing homogeneity as a whole into different groups. Once the grouping mark is selected, it is bound to highlight the nature difference of the whole under the mark, and the other differences cannot be seen. Improper selection of grouping marks will not only be unable to show the fundamental characteristics of the phenomenon, but will even confuse the nature of things and distort the real situation of social economy.

In order to correctly select the grouping marks, we must grasp the signs that reflect the essential differences and internal relations of phenomena as grouping marks according to the task and purpose of statistical research.

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