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求助 人口普查的那道逻辑

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楼主
发表于 2009-10-9 21:09:00 | 只看该作者

求助 人口普查的那道逻辑

The U.S. census is not perfect: thousands of Americans probably go uncounted. However, the basic statistical portrait of the nation painted by the census is accurate. Certainly some of the poor go uncounted, particularly the homeless; but some of the rich go uncounted as well, because they are often abroad or traveling between one residence and another.

为什么答案是没统计的穷人的比例和没统计的富人比例一致?人口普查不是为了调查总人数吗?

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