two-stage sampling的意思|示意
两阶段抽样法
two-stage sampling的网络常见释义
两阶段抽样法 ... 随机抽样 random sampling 两阶段抽样法 two-stage sampling 分层抽样 stratified sampling ...
两阶段抽样 ...相当一部分分析对象进行协变量的观测，这一相当一部分子样称为其次阶段样本，称这种抽样机制为两阶段抽样（two-stage sampling）。
二阶段抽样 ... Two-stage least squares， 二阶最小平方 Two-stage sampling， 二阶段抽样 Two-tailed test， 双侧检验 ...
two-stage sampling相关短语
1、 pps two-stage sampling pps二阶抽样
2、 two-stage sampling unit 二段抽样单位 ; 二级抽样单位
3、 two stage sampling 两段抽样
two-stage sampling相关例句
For the ratio estimate in two-stage sampling, the bias and mean square errors(MES) of the estimater value have been obtained, and the estimater value of the MSE has been given.
给出了二阶比估计量的偏差、估计量的均方误差以及均方误差的估计。
Method:254 people aged 51~75 with two stage sampling were investigated by using multifactor analyses.
方法：采用二阶段抽样法对254名51～75岁居民用多因素分析法进行了调查分析。
This paper studies the second stage sampling methods used in the two stage sampling survey for waterway transportation volume.
研究了采用二阶抽样对水路运输量进行抽样调查时的第二阶抽样方法。
The present balanced two-layer sample rotation system is applicable only to the monthly survey with two-stage sample designs and with small primary sampling units.
目前的平衡两层次样本轮换模式只适用于一级单元规模较小时的两阶段抽样月度调查。
Methods: the breakfast structure and the nutrition knowledge of 3 547 students in rural boarding middle school in Chongqing were investigated by adopting stratified two-stage cluster sampling method.
方法：采用分层二阶段整群抽样方法，对重庆市3 547名中学生早餐饮食结构和营养知识进行调查。