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分层抽样
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分层抽样
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理学
【核心概念】
释
stratified sampling
分层抽样
将总体单元按其属性特征分成若干类型或层,然后在类型或层中随机抽取样本单元的概率抽样方法。又称类型抽样、分类抽样。
Mathematics
>数理统计>抽样与统计过程控制>释义
stratified sampling
分层抽样
stratified sampling
分层抽样
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Chemistry
>分析化学>化学计量学>释义
stratified sampling
分层抽样
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