kurtosis小于3，大于3怎么解读这个数据。

NO.PZ2016062402000009

问题如下：

Which type of distribution produces the lowest probability for a variable to exceed a specified extreme value that is greater than the mean, assuming the distributions all have the same mean and variance?

选项：

A leptokurtic distribution with a kurtosis of 4

A leptokurtic distribution with a kurtosis of 8

A normal distribution

A platykurtic distribution

解释：

A platykurtic distribution has kurtosis less than 3, less than the normal p.d.f. Because all other answers have higher kurtosis, this produces the lowest extreme values.

讲义中有讲述kurtosis=3，小于3，大于3都是什么分布。这些分布具体有什么含义？只是代表尾巴的概率不同吗？

添加评论

1 个答案

品职答疑小助手雍 · 2022年01月27日

同学你好，除了代表尾巴，相应的也代表中间的概率集中度。大于3就是尖峰，小于3就是矮峰，正态的峰度等于3，尖峰对应肥尾，矮峰对应瘦尾。

添加评论

1
回答
0
关注
677
浏览

我要回答关注问题

相关问题

Whitype of stribution proces the lowest probability for a variable to exceea specifieextreme value this greater ththe mean, assuming the stributions all have the same meanvariance? A leptokurtic stribution with a kurtosis of 4 A leptokurtic stribution with a kurtosis of 8 A normstribution A platykurtic stribution A platykurtic stribution hkurtosis less th3, less ththe normp.f. Because all other answers have higher kurtosis, this proces the lowest extreme values. 想问下这道题怎么理解？答案中A的kurtosis=4 B的kurtosis=8 C的kurtosis=3 kurtosis小于3，最小的不是应该选？我觉得我没有读懂这道题目要问我们的是什么？这道题的题目麻烦老师讲下

2020-07-22 16:15 1 · 回答

Whitype of stribution proces the lowest probability for a variable to exceea specifieextreme value this greater ththe mean, assuming the stributions all have the same meanvariance? A leptokurtic stribution with a kurtosis of 4 A leptokurtic stribution with a kurtosis of 8 A normstribution A platykurtic stribution A platykurtic stribution hkurtosis less th3, less ththe normp.f. Because all other answers have higher kurtosis, this proces the lowest extreme values. 讲义里的这两张图，为什么是反的啊？一个是尖峰瘦尾，一个是尖峰肥尾，求解！！

2020-04-23 17:19 2 · 回答

尖峰瘦尾不是落在极值的可能性低？为什么选

2018-08-20 18:30 2 · 回答

kurtosis小于3，大于3怎么解读这个数据。

1 个答案

1

0

677

相关问题