A typical survey refers to a survey method that only collects data from typical units. A typical unit refers to a unit that has outstanding characteristics in terms of the phenomenon being analyzed and studied. It can be a unit with extreme signs; it can also be the most general unit, that is, a representative of an ordinary unit. Through typical surveys, the general situation and characteristics of the overall development can be studied.
a typical survey?
In the survey of the production situation of industrial enterprises in a certain city, a small number of 8 large enterprises with good business performance and corporate profits accounting for a large proportion of all industrial enterprises were selected for investigation