自助经济学的谬误多半是概括所致：我们的阅历只是有限的局部，却会由此错误地推断关于全体的特征。
The fallacies of DIY economics are mostly the result of generalisation: we mistakenly infer the properties of the whole from our limited experience of a smaller part.
流行病学涉及用统计分析和其他的研究手段来研究健康和疾病的模式，致力于改善全体居民的健康水平。
Epidemiology applies statistical analysis and other research methods to study the patterns of health and disease, in an effort to improve the health of entire populations of people.
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