Focus in data quality assessment is non-sampling errors and variance, in addition to sampling errors.

在数据质量评估中，我们除对抽样误差进行检查外，重点是对非抽样误差和偏差的检查。

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Therefore, the improved FCM clustering results can reduce the sampling errors and retain the main attributes of cloud classification samples.

改进后的聚类结果既消除了采样误差，又保持了云类样本的基本特征属性。

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With theory of error analyzing and characteristics of Internet, this article analyzes the non - sampling errors of Internet surveys and comes up with some steps to reduce them.

本文结合调查误差分析的理论，根据网络自身的特点，分析了网络调查的非抽样误差的来源，并提出了减少误差的方法。

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Romney campaigned Thursday in Florida, where two nonpartisan live operator polls conducted over the past two weeks both indicate Obama has a five-point advantage, which is within the surveys' sampling errors.

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The reason for this seemingly dotty result is that the errors from scientific sampling are easier to quantify (and minimise) than those arising from an imperfect head-count.

ECONOMIST: Statistics

As students, you should keep in mind that all these numbers are estimates based on samples, which are thus subject to sampling error (as well as other types of errors).

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