representative sample

基本解釋

To our knowledge, this is the first CFR study based on a nationally representative sample of measles outbreaks.
據(jù)我們所知，這是第一個基於全國代表樣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.
蓋洛普世界民意調(diào)查從2005年到2006年間，對132個國家民衆(zhòng)的代表性樣本就廣泛的問題進行了調(diào)查。
This "first representative sample of planet earth," the authors wrote, "was used to explore the reasons why 'happiness' is associated with higher income.
這項“地球人的首個代表性樣本”，作者寫道，“被用於探尋爲什麼‘幸福’與高收入相關(guān)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.
一個人可能某一天少喫些,另一個人可能多喫些,很多人都會這樣,你可能正好得出人們,平均每天的攝入量,但把它的整躰平均一下,就得到有代表性的結(jié)果
耶魯公開課 - 關(guān)於食物的心理學、生物學和政治學課程節(jié)選

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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