stratified sample

Noun
  1. The population is divided into strata and a random sample is taken from each stratum (synset 106036477)
    referred to in: statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
    is a type of: sample, sample distribution, sampling - items selected at random from a population and used to test hypotheses about the population
    same as: proportional sample, representative sample

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