请输入您要查询的字词：
单词
stratified sampling
释义
stratified sampling
Encyclopedia
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。
理学
采样理论
释
stratified sampling
分层采样
研究者可将整个总体分成不同子群或层，然后按照比例从不同层随机选取最终样本的方法。是一种概率采样技术。
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
†
Chemistry
＞分析化学＞化学计量学＞释义
stratified sampling
分层抽样
随便看
military commissioner’s army
military communal area hygiene supervision
Military community
military complex adaptive system theory
military complex network theory
Military Conference of Mount Hengshan in Hunan
Military Court of the People's Republic of China
Military Craftsmen
military dance
Military Defense Circuit
military disease of natural focus
military disease prevention and control
militarydisease surveillance
military education
military engineering psychology
military environmental medicine in cold climates
military environment psychology
military epidemic prevention during the war
military epidemiology
military equipment geography
Military Ergonomics
military ethics
military etiquette
military explosive
Military families
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：2025/9/1 12:20:56