Methods: Adopting the methods of whole group sampling at random, study on 306 children aged 4-6 of 14 kindergartens in Jing an District of Shanghai.
方法：采用随机整群抽样方法，在上海市静安区抽取14所幼儿园306名4 ~ 6岁儿童进行了研究。
The colognes and perfumes tested were a random sampling of products the average consumer might find at a department or drugstore.
古龙水和香水的检测是在任意一个顾客的产品或者在一个企业或者一个化妆品店随机进行的化学测试。
The program consists of a statistical random sampling designed to detect a 1% incidence of violations at a confidence level of 95%.
该计划包括一个统计学上的随机采样，目的是在95%的置信程度上查出1%的违规几率。
Methods By random sampling method, 9 refectories and 366 students usually having their lunch at schools were drawn from Fangshan District, an anonymous questionnaire survey was conducted among them.
方法采用随机抽样的方法，对房山区9所中小学校食堂及366名在校就餐的学生进行膳食及营养教育相关情况的问卷调查。
Methods an investigation was made 1 000 old people aged 60 and upwards by random sampling and calling at the house.
方法采用整群随机抽样并进行入户调查的方法，对1 000名60岁及以上老年人进行了调查。
At the same time, 49 Yangtse River Delta White Goats were sampled as contrast population from the suburb of Yangzhou city Jiangsu province by the simple random sampling method.
同时，在江苏省扬州市郊区简单随机抽样49只长江三角洲白山羊作为对照群体。结果表明。
METHODS: A total of 478 children at age of 9-12 years from Tulufan City and Buerjin County of Xinjiang Province were enrolled by random cluster sampling.
方法：分别在新疆吐鲁番市区和布尔津县两地采用随机整群抽样的方法，抽取9~12岁儿童478名。
In this paper, the author arrives at the method keying to random sampling sum distribution in normal statistics structure.
给出了常见的统计结构中随机样本和的分布的求解方法。
Methods: Cluster random sampling was used for door-to-door questionnaire survey. Using self-made questionnaire drew 386 elderly at random from 12 communities of Wenzhou City.
方法：采用整群随机抽样入户调查的方法，用自制问卷对温州市城区12个社区386名老年人进行调查。
Methods: Cluster random sampling was used for door-to-door questionnaire survey. Using self-made questionnaire drew 386 elderly at random from 12 communities of Wenzhou City.
方法：采用整群随机抽样入户调查的方法，用自制问卷对温州市城区12个社区386名老年人进行调查。
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