stratified random sampling
分层随机抽样
2026-04-14 10:14 浏览次数 21
分层随机抽样
stratified simple random sampling分层简单随机抽样
proportional stratified random sampling分层随机抽样
stratified random sampling surveys分层随机抽样调查
Stratified cluster random sampling分层整群随机抽样
multistage stratified random sampling[统计]
disproportionate stratified random sampling异比分层随机抽样
stratified random sampling method[统计]
Using Stratified Random Sampling采用分层随机抽样
proportionate stratified random sampling定比分层抽样法
design: a clusting stratified random sampling survey.
设计:随机、分层、整群抽样调查。
the authors take the students of gansu lianhe university as objects of study, using stratified random sampling method taking samples of 1000.
作者以甘肃联合大学学生为研究对象,采用分层随机抽样法抽取样本1000名进行调查。
method using stratified random sampling method.
方法采用分层随机抽样方法。
research mainly use the way of questionnaire survey, it conducted a stratified random sampling from undergraduate students of some independent college;
研讨以问卷调查为主的方式,对某独立学院在校大学生入行了随机分层取样调查;
methods stratified random sampling was adopted to investigate 2588 doctors and nurses in august, 2008.
方法2008年8月采用分层随机抽样方法,对2 588名医护人员进行调查。
methods general investigation was adopted to understand the water supply situation in rural areas and stratified random sampling was used to monitor the water quality.
方法按照相关调查表要求,对农村供水情况进行普查,供水水质采用分层随机抽样的方法进行监测。
methods with stratified random sampling 100 from 1000 township health centers finished their buildings projects, to evaluate their buildings and use.
方法:采用分层随机抽样方法,从河南省1 000个乡镇卫生院建设项目单位中抽取100个为样本,对其土建情况作评价。
methods the number of samples was calculated with the optimum allocation stratified random sampling survey.
方法对样本单位采用分层抽样方法进行问卷调查。
methods a questionnaire survey was conducted with stratified random sampling among 1689 people in 2 counties.
方法采用分层随机抽样,对两县16 89人进行问卷调查。
method some food processing employees were selected according to stratified random sampling method, and filled in a unified questionnaire anonymously.
方法按照分层随机抽样原则随机抽取部分食品从业人员,匿名独自填写统一的调查问卷。
multistage stratified random sampling was conducted an interview survey in status of illness for children under 2 years old.
采用多阶段分层随机抽样法对2岁以下儿童进行疾病状况询问调查。
methods 3034 children between 0 to 6 years in three gorges reservoir were selected by stratified random sampling method.
方法以分层整群随机抽样的方法选取三峡库区0~6岁儿童3034例,采用骨源性堿性磷酸酶(balp)测定。
methods by using stratified random sampling method 524 college students were selected and surveyed with scales about sense of alienation and subjective well-being.
方法分层随机抽取某高校524名大学生,采用疏离感和主观幸福感量表进行施测。
though stratified random sampling method is adopted for the arterial and collector functional systems, there is a good potential to improve it.
尽管分层随机抽样的方法已经在干线和一般的集散系统得到利用,它仍有很大的发展空间。
methods a total of 310 teachers from 4 middle schools in huaibei city were selected with stratified random sampling to undergo a survey with teacher job burnout questionnaire(mbi-es).
方法采用分层随机抽样方法,抽取安徽省淮北市4所中学的310名教师,采用教师职业倦怠量表(mbi-es)进行调查。
methods: 19 medical institutions were selected by using stratified random sampling method in weifang city to analyze the disposal status of medical treatment arrearages.
方法:采用分层整群随机抽样方法,抽出潍坊市19所各级各类医疗机构,对其医疗欠费处理情况进行问卷调查和统计学分析。