The subject matter of statistics could be studied through descrip… - Vidyadip

Question

The subject matter of statistics could be studied through descriptive method or through inferential method. Elaborate with the help of an example.

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Answer

Subject matter of statistics could be studied, both by descriptive method, as well as, inferential method. In descriptive method, the data related to whole of the population is collected and analysed while in inferential method, the data is collected from a sample drawn from the population.
For example, there are 225 employees working in ABC Publication. To find the average salary by descriptive method, data related to the salary of each of the 225 employees will be collected, added and the divided by 225 to find the average salary.
However, to find the average salary by inferential method, a sample of 50 or 60 employees will be drawn from the given population of 225 employees The data related to the salary of these employees will be collectively added and then divided to find the average salary. The average so computed will be deemed to be the average salary of all the employees.

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-NCERT, 2022-23
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