所以问题是,少吗?我看不少。
个案除了误导还是误导。
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但白人总体有钱人多,能负起学费的人多,所以还是解释不过. 除非所有家庭钱一样多
-mjnew-
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02/21/2024 postreply
06:00:54
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必须剔除confounding factor,才能研究这个问题,不过这个数据是有的
-mjnew-
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02/21/2024 postreply
06:03:19
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