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單詞乎

proportional sampling

proportional sampling是什么意思、proportional sampling怎么讀

proportional sampling漢語翻譯

【化】 比例抽樣

proportional sampling英語解釋

名詞 proportional sampling:

  1. the population is divided into subpopulations (strata) and random samples are taken of each stratum
    同義詞：stratified sampling, representative sampling
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