... 随机抽样 random sampling 两阶段抽样法 two-stage sampling 分层抽样 stratified sampling ...
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... 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 ...
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pps two-stage sampling pps二阶抽样
two-stage sampling unit 二段抽样单位 ; 二级抽样单位
two stage sampling 两段抽样
two stage sampling method 两阶段抽样方法
two-stage sampling method 两阶段抽样方法
simple two-stage sampling 简单两阶抽样
stratified two-stage sampling 分层二阶抽样
Stein's two-stage sampling method Stein两阶段抽样方法
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。
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