Stratified sample
volume
British pronunciation/stɹˈatɪfˌaɪd sˈampəl/
American pronunciation/stɹˈæɾɪfˌaɪd sˈæmpəl/

"stratified sample"的定义和意义

Stratified sample
01

the population is divided into strata and a random sample is taken from each stratum

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