proportional sampling

Measurement of pesticide contamination on the body surface of sprayers through regional and proportional sampling strategy

区域比例取样测定全身体表农药污染总量

High proportional sampling audit to budget unit price ;

对预算单价的套用进行高比例抽样审计；

Methods The multi stratified grouping random sampling method and the proportional sampling was used .

方法本次流调方法与全国第四次流调方法基本一致，采用分层整群等比例随机抽样方法。

Methods According to " The Fifth National IDD Surveillance Scheme ", 30 counties screened by the method of proportional population sampling were surveyed .

方法根据全国第5次IDD监测方案要求进行，用PPS抽样法在全省抽出30个县。

Methods With proportional stratified sampling and cluster sampling method , 3555 subjects were selected including officials , company staff , high school students , community population and floating population .

方法采用多阶段按比例随机抽样和整群抽样相结合的方法，抽取公务员、公司职员、高中生、社区居民、流动人口共计3555人，用国际体力活动量表长卷进行调查。

Methods After 30 experimental spots were selected in Guangdong coastal areas and the Pearl river delta by population proportional probability sampling method , 1293 school aged children ( age 8 ￣ 10y ) were conducted thyroid monitoring , urinary iodine and iodined salt measurement .

方法用人口比例概率抽样法对该地区抽取30个调查点1293名8～10岁在学儿童进行甲状腺肿大率、尿碘、盐碘调查；

Methods Population Proportional to Size sampling method was employed in sampling .

方法2005年11~12月，采用分层、三阶段与规模成正比的容量比例抽样方法获得调查对象，由调查员入户对抽中男性进行面对面问卷调查。

Probability proportional to size sampling

概率比例规模抽样法

PPS ( probability proportional to size cluster sampling ) and random cluster sampling methods were used for the investigation .

[方法]采用PPS抽样法和随机整群抽样法调查。