random sampling造句
1. Describe and comment on the technique of random sampling.
2. On occasions simple random sampling procedures as just described do not meet the requirements of the research.
3. The figures are breathtaking, too, as a random sampling will illustrate.
4. Remember, all forms of probability sampling involve random sampling at some stage in the selection process.
5. If the latter were true, random sampling of the normal mucosa would be less reliable as a means of ascertaining risk.
6. In addition he suggests a random sampling of enquiries for further in-depth analysis.
7. METHOD Using stratified random sampling method.
8. DESIGN: Clustering stratified random sampling, cross- sectional survey.
9. Conduct first article inspection and random sampling inspection.
10. Methods Stratified chester random sampling.
11. DESIGN: A clusting stratified random sampling survey.
12. Methods A questionnaire survey was conducted stratified random sampling among 1689 people in 2 counties.
13. This study adopted two - stage random sampling method. The valid subjects were 300.
14. At present, the methods of random sampling, systematic sampling and stratified sampling are widely used in remote sensing sampling.
15. Methods Cluster sampling and random sampling Methods: Were used to choose the subject.
16. Comparative study on random sampling and Latin hypercube sampling with and without variance reduction techniques is carried out to a number of different limit state functions.
17. In a simple random sampling, the sample mean is an unbiased estimate of the population mean.
18. METHOD Random sampling study and collect data by questionnaire survey and examination.
19. Methods With a method of stratified random sampling, a questionnaire survey was conducted among 786 students from 8 middle schools in Beijing.
20. Methods A stratified random sampling was conducted among inhabitants with questionnaire and partial health examination in Yunlong district, Xuzhou.
21. Meanwhile, through the investigation and random sampling, a preliminary survey of the use of animal feed in dairy was got.
22. Y., which works mainly for ad agencies and is following a Nielsen-like model of audience measurement through random sampling.
23. If we choose names out of a hat, or by using random numbers, then we are doing truly random sampling.
24. It gives some idea of the cell / electrode arrangement and the random sampling of activity.
25. The fourth part is an investigation on the state-of-art of the information-literacy education in the Higher Teacher Education Institutions in Chongqing by adopting stratified random sampling.
26. 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).
27. Methods: The self-designed questionnaires were used to anonymously investigate on 179 students in 19 academies of the university who were selected by stratified random sampling.
28. Questionnaire survey of 1120 college students in ofof Taiwan was chosen by random sampling method.
29. In order to elaborate culture of Teaching, I selected two schools respectively from China and America as a case study in an effort to do Cross-case analysis by means of the random sampling strategy.
30. The authors take the students of Gansu Lianhe University as objects of study, using stratified random sampling method taking samples of 1000.
123