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孙璐 · 2021年02月11日

请问在哪里能看到题目的答案解析?

  1. CFA I
  2. Quantitative

NO.PZ2018062016000051

问题如下：

Having collected mean returns for the three stocks, the analyst is now concerned about evaluating dispersion.Which of the following statements is least accurate?

选项：

A.

Based on the variance,Stock A has the highest dispersion.

B.

Based on the range,Stock C has the lowest dispersion.

C.

Based on the mean absolute deviation(MAD),Stock B has the highest dispersion.

解释：

C is correct.

MAD(A)=(|-39-2.4|+|31-2.4|+|12-2.4|+|-4-2.4|+|12-2.4|)/5=19.12

MAD(B)=(|-35-4.4|+|25-4.4|+|15-4.4|+|0-4.4|+|17-4.4|)/5=17.52

MAD(C)=(|6-2|+|-8-2|+|11-2|+|-2-2|+|3-2|)/5=5.6

Based on the MAD,Stock A has the highest dispersion.

请问在哪里能看到题目的答案解析?

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1 个答案

星星_品职助教 · 2021年02月11日

同学你好，

这道题的答案解析我是可以看得到的（见图）。每道题的答案解析都直接附在题目后面的。

如果看不到的话可能需要联系一下技术或者辅导员，技术类问题教研解决不了唉。

在技术没解决你的问题之前，也可以先提问，我给你截图。

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