stratified sample造句
1. Quota sampling is like stratified sampling, but with an important variation.
2. I used a stratified sample technique in two stages to ensure an adequate representation of singlehanded and group practices.
3. This would be an example of a stratified sample.
4. SS-MC introduces stratified sample into state-tree search to solve the reliability evaluation of large-scale problems.
5. Methods A cluster stratified sample of 315 undergraduates were investigated with a closed questionnaire, and 301 questionnaires were available.
6. Methods:a cluster random stratified sample of 394 medical college students were investigated with a SCL-90 questionnaire.
7. Methods cluster multi - stratified sample of 1721 undergraduates was investigated with a half - opened questionnaire.
8. Methods A cluster random stratified sample of 404 medical college students were investigated with a self-administered questionnaire.
9. Methods A cluster stratified sample of 1681 students ham Jianghan University were investigated by SDS.
10. To avoid this possibility, we can opt for a stratified sample.
11. To further reduce the time pressure for a larger training data set, the algorithm creates a smaller training data set via the primary model based on a stratified sample.
12. Methods A questionnaire survey was conducted to a clustered stratified sample of 1 785 children in Qingdao.
13. Methods A questionnaire survey on QOL was conducted to a clustered stratified sample of 2036 students of rural or urban to Hubei.
14. Methods A self-designed questionnaire survey was used to investigate a cluster stratified sample of 1010 college students.