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Subtract. Simplify, if possible.
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Sampling Frame
The list or database from which a statistical sample is drawn for a research study, encompassing all the members of the population being studied.
Representative Sample
A subset of a population carefully chosen to accurately reflect the characteristics of the larger group for the purposes of research or analysis.
Probability Sample
A sampling method in which every member of the population has a known and non-zero chance of being selected for the study, allowing for generalized conclusions.
Voluntary Response Sample
A sampling method where participants self-select to be a part of a study, often leading to biased results due to the non-random nature of the sample choice.
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