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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
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