A B 选项可以帮忙翻译下不多谢
问题如下图:
选项:
A.
B.
C.
解释:
NO.PZ2015120604000126 问题如下 Whiof the following statements refers to survivorship bias? A.Use ta of stratifieequity sampling. B.Use point estimation methoinsteof intervestimation metho C.Use historicta of heel funperformance. C is correct.In the stu of hee funperformance, survivorship biis most likely to occur because only fun with better performanremain alive.在对冲基金业绩的研究中,幸存者偏差最有可能发生,因为只有表现更好的基金才能存活下来。 但对冲基金的历史数据,不一定就表明他是剩下的数据呀。那就像老师举的例子,我取前十年、前9年的数据,每次都是历史数据,那怎么能说是活着的对冲基金呢?
NO.PZ2015120604000126 Use point estimation methoinsteof intervestimation methoUse historictof heel funperformance. C is correct. In the stu of hee funperformance, survivorship biis most likely to occur because only fun with better performanremain alive. 在对冲基金业绩的研究中,幸存者偏差最有可能发生,因为只有表现更好的基金才能存活下来。 为啥不选B呢?希望老师一下
Use point estimation methoinsteof intervestimation methoUse historictof heel funperformance. C is correct. In the stu of hee funperformance, survivorship biis most likely to occur because only fun with better performanremain alive.请问下,A使用分层数据不就是数据选取的有偏差吗?
老师您好,可以说一下ab两个分别是哪两个知识点吗?谢谢