They interact, promote each other, complement each other and are closely related. Information function is the most basic function of statistics, and it is the premise to ensure the effective function of consultation and supervision.
There are some special methods in each stage of statistical work. In the stage of statistical investigation, there are mainly statistical reporting system, key investigation, typical investigation, sampling investigation, general survey and other methods.
In the stage of statistical arrangement, it includes statistical distribution, statistical grouping, distribution series, statistical table, statistical chart making technology and so on. In the stage of statistical analysis, there are many methods, such as comprehensive index method, dynamic series method, index method, sampling method and correlation analysis method.
Statistics, as an important tool to provide information on the operation of the national economy, has been paid more and more attention by domestic and foreign governments, the public, scholars and officials. Statistical work is the general name of the process of collecting, sorting out and analyzing the total amount of social, economic and natural phenomena.
The basic tasks of statistics are:
1, statistical investigation and analysis of national economic and social development.
2, statistical agencies at all levels shall provide statistical data and statistical advice.
3. Statistical institutions at all levels shall exercise statistical supervision over the operation of national economic and social development.