Can you imagine a study of relationships throughout human history ? that focuses on the average?
你能想象,对整个人类历史上的恋爱关系进行研究,并求平均值吗?
哈佛公开课 - 幸福课课程节选
The natural thing to do would be to average them up, right?
很自然的想法是对收益率求平均值
耶鲁公开课 - 金融市场课程节选
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