Thirdly is the sample representative or is there a bias in it due to whatever.

再次，样本有代表性吗,或者其中有偏见吗？

youdao

The simple transaction makes the data sample representative of what a typical person using the system would experience.

这个简单事务使数据样本能够代表典型用户在使用系统时体验到的情况。

youdao

And statistical controls are unlikely to compensate for a poor sampling strategy that does not yield a sample representative of the population to which we want to generalize.

一个差劲的采样策略并不能产生一个我们需要的代表总体的样本，而统计管理不太可能弥补这一点。

youdao

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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Yes, the listeners to the webcast were certainly not a representative sample (not that any survey nowadays is based on a representative sample) but the honest answers may have given us a good indicator of the state of IT readiness for big data.

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It is an efficient way to tease out trends and sentiments by extrapolating information from a relatively small sample group, as long as the sample is representative of the population that you want to learn more about.

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Just as many sciences seek to understand large populations by analyzing a smaller representative sample of a population, the Bolshoi simulation focused on modeling a hypothetical representative volume of the universe.

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