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They also have to deal with selection bias.
保险公司也要面临选择性偏差
One problem was what statisticians call selection bias.
一个问题被统计学家称作选择偏见。
Third, selection bias might be a concern as an earthquake may not be a perfect instrument for randomization.
第三,应该注意到选择的偏差,因为地震可能不是一个随机选择的完美工具。
Because the U.S. is an arguably very successful country, so we have, potentially, a bias in--it's called a selection bias.
因为毫无疑问美国是个很成功的国家,因此我们的潜意识中,存在选择性偏差
One way of investigating this is-- to get around the selection bias-- is to try to look at all countries.
为了避免选择性偏差,研究方法之一是,研究所有的国家
Those exclusions are carefully designed in regard to moral hazard and selection bias.
除外责任是考虑到道德风险和选择性偏差,而精心设计的
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