Answer:
Surveys, samples, census measurements, fieldwork, and observation are a few sources of demographic data. Demographers do research by choosing individuals of the population and then asking them questions.
Demographers use samples to examine a small percentage of the population as a sample group before applying statistics to the entire population. Demographers are able to collect information from every member of a population using census measurements. Studies and surveys are carried out in the population itself via fieldwork (rather than in isolation). In order to better comprehend a population, observation is used to track and document its actions.
Step-by-step explanation:
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