Undercoverage - PowerPoint PPT Presentation

1.2 vocab

1.2 vocab. Simple Random Sample. n measurements from a population is a subset of the population selected in a manner such that every sample of size n from the population has an equal chance of being selected. Simulation. numerical facsimile or representation of a real-world phenomenon.

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Reliability, Validity, and Bias

Reliability, Validity, and Bias. Reliability. Reliability is the extent to which an experiment, test, or any measuring procedure yields the same result on repeated trials.

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Section 7.4 Cautions about Sampling

Section 7.4 Cautions about Sampling. Special Topics. Undercoverage. Sample surveys of large human populations require more than a good sampling design .

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