These are called population measures because they refer to the whole population of possible outcomes and they measure the probabilities. It's the truth, but there are also sample means.

这种被称为人口测量学，因为他们是指整个人口可能的结果输出和测量概率，这是事实，但也有样本均值。

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The test gives an indication of ageing within population groups, but does not accurately measure the life expectancy of an individual, because of natural differences in telomere length.

这项测试给出了关于人群组的老化的印证，但是却没有因染色体端粒的自然差异，确切的测量出一个人的预期寿命。

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A given country might want to monitor dust storms, measure rice yields or track population migrations.

一个领先的国家需要检测沙尘暴，测量大米产量，和跟踪人口流动。

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These are called population measures because they refer to the whole population of possible outcomes and they measure the probabilities.

这些是用来度量总体的变量,因为他们对应的是总体中所有的结果,度量的是所有事件的概率

耶鲁公开课 - 金融市场课程节选

First, to measure what a whole population eats, how in the world could you know that?

首先,去测量人群总体吃什么,到底该如何做

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.

那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It called for the authority to look into using other data sources to measure population figures - such as the National Insurance number register, GP lists and council tax records.

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According to her account, sex-selection technologies were invented in the West, adopted there as a population-control measure and exported to East Asia by Western aid donors and American military officials.

ECONOMIST: Sex selection: Cat got your tongue? | The

And Rick Oltman of Californians for Population Stabilization says the measure sets a dangerous precedent.

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