Collect sufficient and accurate statistics.

收集充分、准确的统计数据。

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Experts strive to produce accurate statistics that provide a richer analysis of health information.

专家努力编制对卫生信息作出更全面分析的准确统计数字。

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Given accurate statistics, the query optimizer generally comes up with correct selectivity estimates.

如果有了准确的统计信息，那么查询优化器一般能够得出正确的选择性估计。

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"There's no way that a human rights organization can possibly have the means, can possibly have the techniques, and the resources we have, in order to get the most accurate possible statistics.

VOA: standard.2009.09.09

Even so, the vagaries in the numbers point to the difficulty of compiling accurate statistics.

NPR: Fudging the Numbers on Hate Crimes

Sometimes people who volunteer for screening know of carriers in their family, which makes it harder to get accurate statistics, says Dr. Kaback, who helped drive screening in the Jewish community.

WSJ: New Study Looks at Irish Risk for Tay-Sachs Disease

There are no accurate statistics, but many wildlife experts rate the hippo as the most lethal animal in Africa, killing more people each year than the more commonly feared lions, crocodiles, and elephants.

NPR: Congolese Hunt 'Osama' the Hippo