所有表格都应该用要回顾的研究的代表性样本进行预试验。
All forms should be pilot tested using a representative sample of the studies to be reviewed.
研究人员选取了1,398个18岁以上的人作为代表性样本进行研究。
The findings were based on a representative sample of 1, 398 people over age 18.
研究人员选取了1,398个18岁以上的人作为代表性样本进行研究。
The findings were based on a representative sample of 1,398 people over age 18.
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。”
This "first representative sample of planet earth," the authors wrote, "was used to explore the reasons why 'happiness' is associated with higher income."
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。
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。 。
Thee gallup world poll conducted surveys on a wide range of subjects in arepresentative sample of people from 132 countries from 2005 to 2006.
为了找出答案，Helsper和Whitty（2010）召集了992对英国夫妇，组成了一个代表性样本，询问他们什么是可以接受的行为，以及他们是否窥探对方。
To find out Helsper and Whitty (2010) recruited a representative sample of 992 British couples and asked them what is acceptable and whether they snoop on each other.
皮尤研究中心对全国范围内具有代表性的1807名父母组成的样本进行了调查，发现课外活动反映了育儿方式的差异。
Extracurricular activities reflect the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
第二个要问的问题是，样本是否有代表性？明白我的意思吗？
The second question to ask is whether the sample is representative? See what I mean?
样本的代表性如何？
我们问的第二件事,就是样本的代表性。
The second thing we ask is how representative is the sample.
这个研究中数据来源于英国家庭状况调查，它是一个对有代表性的英国家庭样本的年度调查。
For this study, the investigators gathered data from the British household Panel Survey - a yearly questionnaire of a nationally representative sample of UK households.
如果样本人群具有统计学上的代表性，那么根据理论这种方式将会表达人群的真实想法。
If the samples are statistically representative, that should, so goes the theory, give a credible picture of what the entire population would think, were it as well-informed.
当我们看样本代表性的时候。
That's coming when we look at the representative of the sample.
然后再选取有代表性的客户样本，举行一些开放式的访谈，以较为松散的方式观察他们的现场反应。
Then do some open-ended interviews and unstructured live observations with a representative sampling of your customers.
我们知道，很多初创公司认为他们可以通过Twitter的免费API服务获得具有代表性的样本。
We do know that many startups feel they can get a representative sample of Twitter activity from the company's free API.
再次，样本有多大的代表性？
在使用Design Advisor之前，需要确定如何获得代表性的工作负载样本，以作为它的输入。
Before using the Design Advisor, you need to determine how to get a representative sample of the workload to provide as input.
在这样的情况下，数据分析师必须从现有的测试数据或生产数据生成有代表性的数据样本。
In such cases, the data analyst must build representative data samples from existing test data or sample the production data.
首先我们需要一个具有代表性，并且公正的新闻报道样本，所以我们持续一个星期每天购买英国前10名最畅销的报纸。
First, we needed a representative, unbiased sample of news stories, so we bought every one of the top 10 bestselling UK newspapers, every day for one week.
早期的观察结果具有一定的代表性，但样本空间较小。
Early observations were assumed to be representative, but were based on small samples.
该研究的发起者在过去四年间观察了全国有代表性的近22，000名儿童的样本。
The study authors looked at a nationally representative sample of almost 22, 000 children over four years.
不是每个流鼻涕的人都需要接受检查——只要有一小份具有代表性的样本就行了。
Not every person with a sniffle need be tested-only a small, representative sample.
再次，样本有代表性吗,或者其中有偏见吗？
Thirdly is the sample representative or is there a bias in it due to whatever.
应该指出，数理统计的结果具有一定的代表性，但是这一结果受到样本的数目和质量的控制。
It should be pointed out that the results of mathematical statistics have a certain representation, but it is restricted by the quantity and quality of samples.
这次调查包括有代表性的人口样本。
The survey covers a representative sample of the population.
这次调查包括有代表性的人口样本。
The survey covers a representative sample of the population.
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