population & sample 总体与样本
population sample individual 总体
local population sample 地区群体样品
Selecting Population Sample 选择人口样本
sample population 抽样人口
Population and Sample 总体与样本 ; 总体和样本
population-based sample 选自人群的样本
sample survey of population 人口抽样调查
The study is based on a large population sample and took into account other possible factors, such as depression, season and levels of physical activity.
这项研究基于大群体样本，并且考察分析了其他可能影响的因素，如忧郁，季节和身体活动水平。
So do you remember here that the premise point to a sample of population and the conclusion extrapolates to the rest of the population.
你们记得这里前提，指的是一个人群样本，结论假设了其他人群。
Great care was taken to try and get a representative sample of the general population.
受访人群都是经过细心挑选，能够代表大众的。
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