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Collect data
Data acquisition
Collecting data is a very important basic work. The general method of collecting data is to consult various statistical yearbooks and
statement
Another is to use some survey method to obtain the relevant data of the problem to be studied.
Sample survey
The method of obtaining data is in the ascendant in our country. There are many methods of sampling investigation, which are highly professional. There are many monographs on sampling technology.
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- Chinese name
- Collect data
- General method
- Consult various statistical yearbooks and reports, and then use a survey method to obtain data about the problem to be studied
In a problem studied by statistical methods, the whole of things or phenomena to be investigated is usually called the population, and each element (member) that makes up the population is called an individual, and the number of individuals contained in a population is called the capacity of the population.
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