Using complex statistics, Worm and colleagues used the number of genera, families, and so on to predict Earth's number of unknown species, and their calculations gave them a number: 8.7 million.

通过运用复杂的统计数据，沃姆（Worm）和同事们用属、科等的数量预测出地球上未知生物的数量，计算结果为：870万。

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Statistical views are a powerful new form of statistics that represent relationships among complex predicates or across tables.

统计视图是一种强大的、新型的统计，它可以表示复杂谓词或表之间的关系。

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If the remote view contains a complex query, using table-level statistics such as the cardinality for the nickname over the view can be misleading.

如果远程视图包含一个复杂的查询，那么使用表级统计信息(例如视图昵称的基数)可能使人产生误解。

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Articles and speeches drafted in his own hand leave no doubt that Reagan was exceptionally well read and had an excellent grasp of both history and current issues, including highly technical matters and complex statistics.

NPR: Looking at President Bush, Seeing an 'Impostor'

At times, with complex calculations, statistics are presented by NASA as a measure for deciding whether to go ahead with a mission that is inherently risky.

NPR: Former Astronaut on NASA Risk Assessment

Such first-hand accounts can do more than any number of speeches and statistics to illuminate a bafflingly complex conflict about which most foreigners would rather forget.

ECONOMIST: A witness and victim of the conflict in Darfur finds a voice