representative sample

基本解释

To our knowledge, this is the first CFR study based on a nationally representative sample of measles outbreaks.
据我们所知，这是第一个基于全国代表样本的麻疹病例病死率研究。
The Gallup World Poll conducted surveys on a wide range of subjects in a representative sample of people from 132 countries from 2005 to 2006.
盖洛普世界民意调查从2005年到2006年间，对132个国家民众的代表性样本就广泛的问题进行了调查。
This "first representative sample of planet earth," the authors wrote, "was used to explore the reasons why 'happiness' is associated with higher income.
这项“地球人的首个代表性样本”，作者写道，“被用于探寻为什么‘幸福’与高收入相关的原因。”

One person might be a little low one day, another person might be high, a lot of people might-- you might happen to have captured them on an average day, but overall it averages out, so you get a representative sample.
一个人可能某一天少吃些,另一个人可能多吃些,很多人都会这样,你可能正好得出人们,平均每天的摄入量,但把它的整体平均一下,就得到有代表性的结果
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The bonds used in the representative sample tend to be the largest and most liquid in the index.
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It is hard to construct a representative sample in a country as large, diverse and unequal as Brazil.
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This is by no means a definitive list but rather a representative sample.
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