穆同学2024-01-17 22:29:29
老师stratified sampling不是lower cost吗
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Simon2024-01-18 11:57:27
同学,上午好。此题关键信息He is not convinced it is worth his or his staff´s time and effort to try to beat the broad market bond index. 而stratified是能获得比index更高的收益的,所以不选。而lower cost是这个策略增加收益的一种方式。
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