1) stratified sampling
分层抽样调查
2) stratified random sampling surveys
分层随机抽样调查
1.
Methods Based on the number of cases with hepatitis B reported by epidemic status network in 2005, the stratified random sampling surveys with different proportion were taken at the beginning of each month according to last month s regional incidence.
方法根据2005年疫情网络报告乙肝病例数,每月初按上月地区发病不等比例分层随机抽样调查,调查病例统一填写《天津市乙型病毒性肝炎流行病学调查表》,用Excel软件输机并运用SPSS11。
3) analytic sampling survey
分析性抽样调查
4) sampling investigation
抽样调查
1.
Development Status of Environmental Protection Industry in China--Result analysis on sampling investigation of environmental protection industry in 2003;
我国环境保护产业发展状况——2003年环保产业抽样调查结果分析
2.
Earthquake damage prediction and countermeasures against earthquake disasters based on sampling investigation for village housing of Anhui Province,China
基于抽样调查的安徽农村民居震害预测与减灾对策
3.
The sampling investigation was conducted during 20 th to 23 th,February 2005.
方法:以2005年2月20至23日为时点调查日,对全国13所不同省份的民政医院精神分裂症住院患者进行抽样调查。
5) sampling survey
抽样调查
1.
The further study of some important problems of sampling survey;
有关抽样调查几个重要问题的进一步探究
2.
The construction of the course and the reform of educating on thd sampling survey;
《抽样调查》课程建设与教学改革
3.
Sampling survey of hearing disability in Jilin Province;
吉林省听力残疾抽样调查分析
6) Sample survey
抽样调查
1.
Through the sample survey on the outside reading of the university students, this paper introduces the reading situation of the current university students, considers the problems existing currently in the outside reading of university students, and puts forward some ideas of improving the work for the readers.
通过对大学生课外阅读的抽样调查,掌握了当前大学生读者的阅读状况,对当前大学生课外阅读存在的问题进行了反思,并提出了改进读者工作的思路。
2.
Sample survey is an important way to find statistics;the problem of sample survey by dividing layer is domain estimation in fact.
抽样调查是获得统计数据的一项重要途径,而对需要进行研究的层次作为子总体进行分层抽样实际上就是域估计问题。
3.
The application of sample survey method in history research is analyzed.
对统计学中抽样调查方法在历史研究中的应用进行了分析。
补充资料:分层抽样
分子式:
CAS号:
性质:又称分类抽样或类型抽样。将总体划分为若干个同质层,再在各层内随机抽样或机械抽样,分层抽样的特点是将科学分组法与抽样法结合在一起,分组减小了各抽样层变异性的影响,抽样保证了所抽取的样本具有足够的代表性。分层抽样根据在同质层内抽样方式不同,又可分为一般分层抽样和分层比例抽样,一般分层抽样是根据样品变异性大小来确定各层的样本容量,变异性大的层多抽样,变异性小的层少抽样,在事先并不知道样品变异性大小的情况下,通常多采用分层比例抽样。
CAS号:
性质:又称分类抽样或类型抽样。将总体划分为若干个同质层,再在各层内随机抽样或机械抽样,分层抽样的特点是将科学分组法与抽样法结合在一起,分组减小了各抽样层变异性的影响,抽样保证了所抽取的样本具有足够的代表性。分层抽样根据在同质层内抽样方式不同,又可分为一般分层抽样和分层比例抽样,一般分层抽样是根据样品变异性大小来确定各层的样本容量,变异性大的层多抽样,变异性小的层少抽样,在事先并不知道样品变异性大小的情况下,通常多采用分层比例抽样。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条