开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

格小格 · 2021年08月25日

lognormal 的图形是以什么样子的呢?

NO.PZ2018062016000103

问题如下:

A client has asked you to explain the lognormal distribution is used to describe the price of asset, which of the following will you most likely include in your explanation?

选项:

A.

Asset price is normal.

B.

Lognormal distribution is popular.

C.

Asset price are bounded from below by 0.

解释:

C is correct.

Because the lognormal distribution are bounded below by 0, and price cannot be negative.

lognormal 的图形是以什么样子的呢?

1 个答案

星星_品职助教 · 2021年08月26日

同学你好,

如图,两个都是lognormal的图形。

图形不需要掌握,需要掌握的是形状两个特点:

① it is bounded below by 0 (即图像都在第一象限,简单理解成都大于0即可)

② it is skewed to the right (it has a long right tail)