- stratified random sample
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a random sample of a population in which the population is first divided into distinct subpopulations, or strata, and random samples are then taken separately from each stratum.
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Universalium. 2010.
stratified random sample
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random sample — a subgroup of a total population (the so called universe) selected by a random process ensuring that each member of the universe has an equal chance of being included in the sample. It is sometimes stratified so that separate samples are drawn… … Medical dictionary
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