Chapter 1Thinking questions and exercises
（１）Filling space
1. The relationship between statistical work and statistical data is the relationship of and .
2. The relationship between statistical work and statistics is the relationship between and .
3． Statistical activities have the functions of . . . and .
4. Statistical indicators reflect the quantitative characteristics of , and quantitative signs reflect the quantitative characteristics of .
5. In the population as a whole, the individual is " ", and "educational level" is the symbol.
6. Various specialized methods are used at each stage of the statistical research process, such as large-scale observation methods, comprehensive indicator methods, and statistical inference methods.
7. Statistical signs are the names of attributes or characteristics common to all individuals in the population. It is divided into two types: and .
