What is the most basic function among the three functions?

Information function. Statistics has three functions, namely, information function, consultation function and supervision function. Among them, information function is the most basic function. Because the main purpose of statistics is to collect, process, analyze and provide a lot of social and economic information, which provides an important basis for scientific decision-making and management. Statistical information is the most basic and comprehensive information in social and economic information, covering the national economy, regions, the world and other fields, with the most extensive and systematic characteristics. Information function is the premise to ensure the effective function of consultation and supervision.