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单词
抽样调查
释义
抽样调查
Encyclopedia
农学
抽样调查
释
survey sampling
抽样调查
一种以概率论为基础,按随机原则从调查总体中抽取部分单位进行观察,用以估计推算总体某些数量特征的非全面调查。又称样本调查、抽样技术或抽样法。
理学
【核心概念】
释
survey sampling
抽样调查
一个统计学分支,主要研究如何从全体被调查对象(即总体)中抽取一部分个体(即样本)进行调查或观测、获取数据,并以此对总体的目标量(未知参数)作出推断。
Mathematics
>数理统计>抽样与统计过程控制>释义
sample survey
抽样调查
sampling investigation
抽样调查
sampling survey
抽样调查
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survey-sampling
抽样调查
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