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首页 - 英汉词典 - P字开头的单词或词组 - proportional sampling

英语解释

proportional sampling

汉语翻译

【化】比例抽样

英语解释

名词 proportional sampling:

the population is divided into subpopulations (strata) and random samples are taken of each stratum
同义词：stratified sampling, representative sampling

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