这道题B的表述不是对的么

NO.PZ2018062001000011

问题如下：

Tim, an analyst of an investment company, says " Normal distribution is widely used in quantitative analysis. For example, it can illustrate the distribution of assets returns and asset prices." Is Tim correct?

选项：

Incorrect about illustrate the distribution of asset prices.

Incorrect about illustrate the distribution of assets returns.

Correct.

解释：

A is correct.

Normal distribution can be used to illustrate the asset return distribution. However, asset prices are always greater than zero. Lognormal distribution will be more suitable for asset prices distribution.

B不就是说题目是错的，正态分布拟合了收益的分布么

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星星_品职助教 · 2023年04月20日

同学你好，

B选项说的是关于asset return（应服从正态分布）的描述是错的。

由于asset return可以用正态分布描述，所以题干中的“it can illustrate the distribution of assets returns...”的描述是正确的，不能选择B选项。

题干中描述错误的是“it can illustrate the distribution of ....asset prices”（应用lognormal distribution来描述价格）。所以应该选择A选项

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NO.PZ2018062001000011问题如下Tim, analyst of investment company, says \" Normstribution is wily usein quantitative analysis. For example, it cillustrate the stribution of assets returns anasset prices.\" Is Tim correct?A.Incorreabout illustrate the stribution of asset prices.B.Incorreabout illustrate the stribution of assets returns.C.Correct.A is correct.Normstribution cuseto illustrate the asset return stribution. However, asset prices are always greater thzero. Lognormstribution will more suitable for asset prices stribution.asset price是负数么，return 是正有负吧

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A为什么正确？B为什么不对？

2019-04-28 21:38 1 · 回答

这道题B的表述不是对的么

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