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Key Terms
Population
The entire group of individuals about which we want to ______ information.
Sample
A ______ part of the population from which we actually collect information.
Observational Study
Observes individuals and measures variables of interest but does not attempt to ______ the responses.
Experiment
Deliberately ______ some treatment on individuals to measure their responses.
Simple Random Sample (SRS)
Every possible group of 'n' individuals has an ______ chance of being selected.
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