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二重抽样
释义
二重抽样
Encyclopedia
理学
数据收集模式
释
double sampling
二重抽样
一种分两步抽取样本的概率抽样方法：首先对从总体中随机抽取的样本量较大的样本（第一重样本）进行简单调查以获取有关总体的结构或辅助信息，然后从第一重样本中随机抽取一个样本量较小的样本（第二重样本）；最终利用抽取的第二重样本对总体所研究的目标量进行估计。又称二相抽样、两相抽样。
Mathematics
＞数理统计＞抽样与统计过程控制＞释义
double sampling
二重抽样
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