赵同学2023-10-13 20:44:25
请问老师C的解析中,权重要和benchmark 一样,那就不能避免over under weighting 吧?It implements risk control by ensuring that the weighting in each sector matches the benchmark weighting. However, it does not allow for overweighting one specific category over another.
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苏学科2023-10-14 20:28:49
同学你好,这里指的是分层抽样,它指的是按照规定的比例“benchmark”从不同层中随机抽取样品;因此不会存在one overweight than another 大家都是一样的,都是按照benchmark 设定的哦
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