- Joined
- 5/17/06
- Messages
- 133
- Points
- 28
I have some questions about Kurtosis and leptokurtic / platykurtic
I found different books said it differently.
for Wikipedia and Schweser's FRM study guide and some other books
Leptokurtic = positive (or >3) and it is peaked at the mean and with fat tail
Platykurtic = negative (or <3) and it is less peaked at the mean and with thin tail
Kurtosis - Wikipedia, the free encyclopedia
But for some other books i.e. The Mathematics of Options Trading
The Mathematics of Options Trading - Google Book Search
says differently about the tails:
Leptokurtic => long and skinny/thin tail
Platykurtic => short and fat tail
I feel the second one is more convincing, do u guys have any idea?
I found different books said it differently.
for Wikipedia and Schweser's FRM study guide and some other books
Leptokurtic = positive (or >3) and it is peaked at the mean and with fat tail
Platykurtic = negative (or <3) and it is less peaked at the mean and with thin tail
Kurtosis - Wikipedia, the free encyclopedia
But for some other books i.e. The Mathematics of Options Trading
The Mathematics of Options Trading - Google Book Search
says differently about the tails:
Leptokurtic => long and skinny/thin tail
Platykurtic => short and fat tail
I feel the second one is more convincing, do u guys have any idea?