| 单词 | cluster sample | ||||||||||||||||
| 释义 | cluster sample
更多释义 收起释义 例句释义: 群抽样,集群抽样,整群抽样 1. Methods: With a self-designed questionnaire, a cluster sample of 2038 middle school students were investigated in Shangqiu. 方法：采取分层整群抽样调查方法，运用统一设计的调查问卷，对商丘市2038名中学生的伤害情况进行流行病学调查。 www.ceps.com.tw 2. Methods: A stratified cluster sample of 212 junior middle school students was investigated with a self-made questionnaire. 方法：采用分层整群抽样方法，对武汉市某中学212名初一、二学生进行自编的初中生性知识性态度问卷调查。 www.bing.com 3. Methods A cluster sample of 1721 undergraduates was investigated with a half-opened questionnaire. 方法采用多阶段整群抽样的方法以半开放式问卷对1721名大学生进行调查。 www.ceps.com.tw 4. Methods A cluster sample of 664 students received the self-designed questionnaire survey about nutritional knowledge and attitude. 方法采用随机整群抽样方法对兰州地区2所高校664名学生进行自行设计的营养知识和态度问卷调查。 www.ceps.com.tw 5. Select a sampling method. Do we us a random sample, stratified sample, or cluster sample? 选择一种取样方法，我们是随机抽样、分层抽样、还是整群抽样？ zhidao.baidu.com 6. Methods A cluster sample of 500 preschool children's parents were given the KAP investigation on nutrition. 方法采用整群随机抽样方法对500名学龄前儿童家长进行KAP问卷调查。 terms.shengwuquan.com 7. Methods By using BSRI and EPQ, a cluster sample of 209 normal college students were investigated. 方法通过整群抽样，使用BSRI和EPQ对河南某高等师范院校209名学生进行调查。 www.chemyq.com 8. Methods By using the methods of daily survey record and mental measurement, a cluster sample of 554 pupils were investigated. 方法随机整群抽取研究对象，采用日常观察记录和心理测量相结合的方法。 www.chemyq.com 9. The Estimation of Mean Under the Circumstances of Non-equal-probability Classified Cluster Sample Survey and Its Nature 不等概分类整群抽样下的均值估计及其性质 service.ilib.cn 10. Methods: To carry on cluster sample survey with randomly selecting 17 kindergartens, a total of 1984; 方法：随机选取17所幼儿园进行整群抽样调查，共计1984名； www.fabiao.net 1. Accuracy Assessment of Thematic Classification Based on Point and Cluster Sample 遥感图像分类精度的点、群样本检验与评估 www.ilib.cn 2. Estimation of the Effect of Cluster Sample Design 整群抽样设计效应的估计 www.ilib.cn |
||||||||||||||||
| 随便看 |
|
英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。