问题如下图：
选项：
A. 
B. 
C. 
解释：
能帮忙翻译一下题目吗
maggie_品职助教 · 2020年08月06日
嗨，努力学习的PZer你好：
翻译：基金3的最新发布季度报告中称，基金3对其预测模型实施了一种新的正式风险控制（请看讲义257页Formal Constraints），该模型限制了预期收益分布，使其偏离均值的偏差不超过60%。
注意正太分布是对称性的分布，相当于均值左右两边正负收益的分布的对称的，即偏度等于0，均值等于中位数。而这里题干描述的是“deviations from the mean”偏离均值的程度不超过60%，说明这不是对称分布啊。在衡量非对称分布的偏度的时候用的是skewness。
我看你报的是全线班，这道题李老师在课后题或经典题中都有详细的讲解，咱们可以先去听下视频再来做题哦。
-------------------------------就算太阳没有迎着我们而来，我们正在朝着它而去，加油！
NO.PZ2019012201000073 问题如下 In Fun3’s latestquarterly report, rea thFun3 implementea new formrisk controlfor its forecasting mol thconstrains the prectereturn stribution sothno more th60% of the viations from the meare negative.Whirisk measurees Fun3’s new risk control explicitly constrain? Volatility B.Skewness C.awwn Skewness measuresthe gree to whireturn expectations are non-normally stribute If astribution is positively skewe the meof the stribution is greater thanits mean—more thhalf of the viations from the meare negative anlessthhalf are positive—anthe average magnitu of positive viations islarger ththe average magnitu of negative viations. Negative skewincates thththe meof the stribution lies below its mean, antheaverage magnitu of negative viations is larger ththe average magnituof positive viations. Fun3’s new risk control constrains its mol’sprectereturn stribution so thno more th60% of the viations fromthe meare negative. This is explicit constraint on skewness. If a stribution is positively skewe the meof the stribution is greater thits mean—more thhalf of the viations from the meare negative anless thhalf are positive—anthe average magnitu of positive viations is larger ththe average magnitu of negative viations. 如果是positively skewe不是右边正的部分面积大吗？那为什么说more thhalf of the viations from the meare negative anless thhalf are positive？不应该是大部分偏离均值的都是positive吗？
NO.PZ2019012201000073 问题如下 In Fun3’s latestquarterly report, rea thFun3 implementea new formrisk controlfor its forecasting mol thconstrains the prectereturn stribution sothno more th60% of the viations from the meare negative.Whirisk measurees Fun3’s new risk control explicitly constrain? Volatility B.Skewness C.awwn Skewness measuresthe gree to whireturn expectations are non-normally stribute If astribution is positively skewe the meof the stribution is greater thanits mean—more thhalf of the viations from the meare negative anlessthhalf are positive—anthe average magnitu of positive viations islarger ththe average magnitu of negative viations. Negative skewincates thththe meof the stribution lies below its mean, antheaverage magnitu of negative viations is larger ththe average magnituof positive viations. Fun3’s new risk control constrains its mol’sprectereturn stribution so thno more th60% of the viations fromthe meare negative. This is explicit constraint on skewness. 完全没看懂题目跟的关系, 可以一下分析逻辑吗
NO.PZ2019012201000073 Skewness awwn Skewness measuresthe gree to whireturn expectations are non-normally stribute If astribution is positively skewe the meof the stribution is greater thanits mean—more thhalf of the viations from the meare negative anlessthhalf are positive—anthe average magnitu of positive viations islarger ththe average magnitu of negative viations. Negative skewincates thththe meof the stribution lies below its mean, antheaverage magnitu of negative viations is larger ththe average magnituof positive viations. Fun3’s new risk control constrains its mol’sprectereturn stribution so thno more th60% of the viations fromthe meare negative. This is explicit constraint on skewness. 如果是volatility一般会是什么key wor/怎么描述？谢谢老师~我看到mean就想成了上下围绕mean波动就选了volatility...key wor原来是return. stribution，分布最多是40%在negative si etc。。。
NO.PZ2019012201000073 老师麻烦下c
NO.PZ2019012201000073 题目表述是不是更像VaR？VaR和skewness在表述上如何区分？