Question

sources of population data​

Answer 1

Answer:

There are a number of different survey techniques that can be used to collect primary data, such as interviews (e.g., face-to-face, telephone, e-mail, fax) or self-administered questionnaires. When polls, censuses, and other direct data collection are undertaken, these all constitute primary data sources.

Answer 2

First hand data which are collected by census, vital registration, sample survey, administrative records, population register, etc are primary sources of population data. Census is the main source of demographic data...

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