单词乎

proportional sampling

proportional sampling是什么意思、proportional sampling怎么读

proportional sampling汉语翻译

【化】 比例抽样

proportional sampling英语解释

名词 proportional sampling:

  1. 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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