“stratified random sampling”的概念、定义、翻译、参考文献-科学参考

单词	stratified random sampling
释义	stratified random sampling Encyclopedia 教育学抽样释 stratified random sampling分层随机抽样按照总体已有的某些特征，将总体分为几个不同的部分（每一部分称一个层），再分别在每一部分中随机抽样的方法。农学抽样调查释 stratified random sampling分层随机抽样将总体按一定的原则分成若干个子总体，每个子总体称为层，在每个层内进行抽样，不同层的抽样相互独立且每层的抽样都是简单随机抽样的方法。 Mathematics ＞数理统计＞抽样与统计过程控制＞释义 stratified random sampling分层随机抽样
随便看	identification of boundaries identification of Chinese crude medicinals identification of Chinese crude medicinals by DNA barcoding identification of Chinese materia medica identification of Chinese medicinal characteristics identification of Chinese medicinal origin identification of Chinese medicinals identification of Chinese medicinals by microscope identification of Chinese medicinals by physics and chemistry identification of Chinese patent medicinal formulas identification of cultural relics identification of dental bone apparatus identification of disability identification of disease resistance in crop identification of distributed parameter systems identification of drought tolerance identification of editions of Chinese ancient books identification of electronic records identification of explosion trace identification of file consistency identification of fishnet twine identification of forensic biological evidence identification of forensic science identification of gene chip identification of gene therapy product

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