1.
Proportion allocation in stratified random sampling
按比例分层随机抽样
2.
gains from proportionate stratified sampling
按比例分层抽样的得益
3.
timates in stratified random sampling
分层随机抽样的比率估计值
4.
the population is divided into strata and a random sample is taken from each stratum.
总体分成阶层后由各阶层抽选出来的随机样本。
5.
Methods The number of samples was calculated with the optimum allocation stratified random sampling survey.
应用最优分配随机分层抽样方法确定调查点。
6.
Methods Stratified chester random sampling.
方法采用分层整群随机抽样的调查方法。
7.
Multiple Impution for Missing Data in Stratified Random Sampling
分层随机抽样条件下缺失数据的多重插补方法
8.
Comparision of Statistics Methods for Analysis of Multistage Clustered Randomized Data;
多阶段随机抽样数据统计分析方法比较
9.
random sampling
随机抽样,随机采样
10.
THE RATIO ESTIMATION OF RANDOMIZED TWO-PHASE SAMPLING SURVEY
二项抽样下随机化调查的比估计模型
11.
Methods The investigated sites were selected by cluster sampling from13 cities.
方法在13个市采用整群分层随机抽样的方法选择调查点。
12.
Stratified Cluster Sampling and Its Application on the Improved RRT Model for Sensitive Question Survey;
敏感问题改进的随机应答技术模型分层整群抽样研究及应用
13.
Estimation of parameters in stratified cluster sampling on randomized response technique for sensitive question survey
敏感问题随机应答技术模型分层整群抽样下参数的估计
14.
single random sampling
单次随机抽样 单次随机抽样
15.
simple random sampling
简单随机抽样 简单随机抽样
16.
estimation of sample size with proportions
比例抽样样本容量估计
17.
covariance for simple random sampling
简单随机抽样协方差
18.
precision of simple random sampling
简单随机抽样精密度