But in trying to answer this question with these methods, a host of background factors come into play and we are then left to relying on statistical controls in any attempts to sort them.

但是在用这些方法回答这个问题时，大量背景因素开始起作用，然后我们就开始依靠统计管理来解决他们。

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He questioned the statistical methods used in the paper and said the authors had not adequately considered other factors that might have been responsible for the fall in child deaths.

他对论文中使用的统计方法提出了质疑，认为研究者没有充分考虑到可能引起儿童死亡率下降的其他因素。

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They then used statistical controls to filter out such factors.

他们然后用数据控制系统筛选出这些因素。

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While the report presents interesting statistical factors and underscores the need for BDs to stay on top of compliance, beyond the nature of exhortation there is little of value in the suggested ways to improve compliance.

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Seasonally adjusted figures are calculated to minimize the statistical impact of temporary factors, such as increased hiring during the summer tourist season in Greece, for example.

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They also used statistical tricks to account for factors like income and education.

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