请输入您要查询的字词:
单词
double sampling
释义
double sampling
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
double sampling
双重抽样
†
,二次抽样
随便看
potential difference
potential difference spectra
potential divider
potential drop
potential electrode
potential energy
potential energy curve
potential energy function
potential energy profile
potential energy surface
potential energy surface intersection
potential energy surface (PES)
potential energy tensor
potential equation
potential evaporation
potential evapotranspiration
potential evapotranspiration of farmland
potential field
potential field data separation
potential flow
potential flow equation
potential force
potential function
potential game
potential good reduction
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/1/16 11:09:54