英语词汇“stratified sampling”的意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	stratified sampling
释义	stratified sampling 汉语翻译【计】成层抽样【经】分层抽样英语解释：名词 stratified sampling: the population is divided into subpopulations (strata) and random samples are taken of each stratum 同义词：representative sampling, proportional sampling
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stratified sampling