Examlex
How can developing a questionnaire be part art and part science?
Representative Sample
A segment of the population that precisely mirrors the characteristics of the whole population.
Population
The entire group of individuals or instances about whom the research is focused.
Sampling Error
The difference between a statistic derived from a sample and the corresponding statistic of the entire population, due to chance variation in selecting the sample.
Population
The entire group of individuals or items that a researcher or statistician is interested in studying.
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