1.
"They sampled 2, 000 people at random to test the new drink . "
为了测试新型饮料,他们对２,０００人进行了随机抽样调查。
2.
Mental state and suicidal attitude of medical students in different educational levels: A cluster random sampling investigation;
不同学历医学生的心理状况及对自杀态度:整群随机抽样调查
3.
Method To visit and talk with interviewees who are chosen with random sampling.
方法 进行随机抽样的入户访谈式调查。
4.
Spot Check and its Application in Product Design;
产品设计中抽样随机调查方法的应用
5.
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
6.
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。
7.
Methods Stratified chester random sampling.
方法采用分层整群随机抽样的调查方法。
8.
Permanent Random Numbers (PRNs) and its Application to Industrial Sample Surveys;
永久随机数(PRNs)在工业抽样调查中的应用
9.
random sampling
随机抽样,随机采样
10.
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。
11.
A Multi-Pass Biased Random Sampling Method for Scheduling Multiple Projects;
随机抽样算法在多项目调度中的应用
12.
Methods A total of 550 students in 4 junior schools were sampled with multistage sampling and surveyed.
方法通过多级随机抽样抽取济南市4所初中550名初一学生，采用问卷调查。
13.
single random sampling
单次随机抽样 单次随机抽样
14.
simple random sampling
简单随机抽样 简单随机抽样
15.
theory of sample surveys
抽样调查理论 抽样调查理论
16.
Methods To investigate Mongol and Kazakh, Uygur, Han population of aged ≥30 with methods of random sample.
方法 采取随机整群抽样法，调查30岁以上蒙古族、哈萨克族、维吾尔族及汉族居民。
17.
covariance for simple random sampling
简单随机抽样协方差
18.
Proportion allocation in stratified random sampling
按比例分层随机抽样