cluster sampling
常见例句
- DESIGN:A stratified randomised cluster-sampling investigation.
設計：分層隨機整群抽樣調查。 - Method: questionnaire was used to investigate 200 male out -patients in STD clinic selected with cluster-sampling method.
方法：採用隨機抽樣對目標人群進行問卷調查。 - Methods A survey on prevalence of FD in communities of Shijiu Neighborhood, Rizhao was conducted by using a stratified, randomized cluster-sampling method.
方法採用隨機分層整群抽樣方法，對日照市石臼街道常住人群進行麪訪式問卷調查。 返回 cluster sampling