stratified sample

1. As the sampling survey is stratified sampling, so the research of the sample rotation is under the stratified sampling.
   由于该抽样调查采取的是分层抽样，因此相应地用分层抽样下的样本轮换研究。
2. This would be an example of a stratified sample.
   这就是一个典型抽样的例子。
3. Design and application of stratified gastight system for acquiring water sample in deep-sea
   深海分层气密水样采集系统的设计与应用
4. So this survey is an innovative study. Methods: Stratified random cluster sampling method was used to determine the survey sample.
   研究方法：采用分层整群随机抽样方法抽取样本。方法：以分层随机整群抽样的方法，确定调查样本。
5. Methods A stratified random cluster sample of eight kindergartens was drawn in Hefei, and the preschool children were divided into intervention group and control group.
   方法采取随机、分层、整群抽样的方法在合肥市选取8所幼儿园，随机分为干预组和对照组。
6. The Stratified Random Sampling Method and Small Sample Testing
   分层随机抽样方法与小子样检验
7. Cluster of Equal Size Sampling Supplemented by Stratified Sample
   辅以分层抽样样本的等容量整群抽样方法
8. SS-MC introduces stratified sample into state-tree search to solve the reliability evaluation of large-scale problems.
   而SS-MC方法将分层抽样技术引入状态树搜索过程来实现大规模网络的可靠性评估。
9. Methods To the peasants who have taken part in the new-type rural CMS in WuYuan, the multi-phase stratified cluster random sampling has been adopted to select the sample people.
   方法对婺源县参合农民，采用多阶段分层整群随机抽样法抽取研究对象，进行纵向对比研究，基线调查和追踪调查均采用入户询问调查，以各项卫生服务指标作为指示指标；
10. Second, during the process of selecting sample data, we make use of the stratified sampling first, systematic sampling later to ensure representativeness of the sample.
    第二，在选取数据样本时，我们采用先分层，再等距抽样的方法，选取了数据样本，保证了样本的代表性。
11. Multi-stage stratified randomized sampling was used in this study. The sample was stratified according to the geographical distribution, urban-rural and gender.
    [研究方法]本研究属于横断面调查。采用多阶段分层随机抽样，按照地理分布、城乡和性别进行分层。
12. Using stratified random sampling, the survey sample contains the provincial level of secondary school teachers and students of secondary school teachers and students and non-provincial level.
    运用分层随机抽样，调查的样本由省一级中学的师生和非省一级中学的师生构成。
13. Stratified sampling is stratified by the total sample, and samples of special importance to assign a greater proportion of the sample layer on the emergence of a large amount more.
    分层抽样是通过对总体样本分层，然后给特殊重要的样本进行赋更大的比例，对影响大的抽样层出现的量更多。
14. Stratified sampling is dividing the general unit into several types, or layers, according to the characteristics of their property, from which sample units are randomly selected.
    分层抽样就是将总体单位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位。

noun

1. the population is divided into strata and a random sample is taken from each stratum

   Synonym:    representative sampleproportional sample