cluster random sampling

基本解釋

A survey was conducted among 701 freshmen in one college by cluster random sampling.
采用整群隨機(jī)抽樣方法，在某大學(xué)抽取701名大學(xué)生作為調(diào)查對象。
Methods Cluster random sampling method was employed in this survey, then 2000 families amounting of 7218 people were selected.
方法采用整群隨機(jī)抽樣方法，抽取城鄉(xiāng)居民2000戶，共計(jì)7218人。
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Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey .
方法根據(jù)全國第四次結(jié)核病流行病學(xué)抽樣調(diào)查方案，采用分層整群隨機(jī)抽樣方法抽取調(diào)查點(diǎn)，然后根據(jù)調(diào)查結(jié)果進(jìn)行分析。