Population data denotes the index which gives the various information of population like birth, death, migration, age, sex, marital status, religion, occupation, etc. Such data help to formulate and implement the various policies and planning in a country.
Population data can be found from various sources. On the basis of the nature of the data, they can be broadly divided into two groups.
- Primary sources
- Secondary source
- Primary source
First hand data which are collected from the top level sources which are census, vital registration, administrative record, population registration, etc.
- Secondary sources
The data are found from person, organization, agencies, books, journals, magazine, annual reports, etc which are lower level data.
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