Sampling is often used when it is not possible to collect information from all persons you want to study and when it is not necessary to collect information from all persons.

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Sampling is a method of selecting a subset of individuals from a larger population to participate in a study, which allows researchers to make inferences about the population as a whole without having to survey every single individual. Sampling is often used when it is not feasible or practical to collect data from everyone in the population.

Sampling Is Often Used When It Is Not Possible to Collect