但她警告说，调查中向警察报告抢劫案的人太少了，这使得统计局无法确定这些数据是真实增加了还是只是一个随机的变量。

But she cautioned that so few people in the survey reported robberies that the bureau cannot be certain whether those figures represent a true increase or a random sampling variation.

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但她警告说，调查中向警察报告抢劫案的人太少了，这使得统计局无法确定这些数据是真实增加了还是只是一个随机的变量。

But she cautioned that so few people in the survey reported robberies that the bureau cannot be certain whether those figures represent a true increase or a random sampling variation.

youdao