What does a positive kurtosis mean

The original kurtosis value is sometimes called.For example, data that follow a t distribution have a positive kurtosis value.Sample kurtosis that significantly deviates from 0 may indicate that the data are not normally distributed.One extreme example of a distribution that has a.There are multiple definitions of kurtosis and its interpretation is tricky.A normal distribution has a kurtosis of 3 and is called mesokurtic.

Distributions greater than 3 are called leptokurtic and less than 3 are called platykurtic.Data sets with low kurtosis tend to have light tails, or lack of outliers.The greater the value of kurtosis, the higher the peak.For example, data that follow a t distribution have a positive kurtosis value.Kurtosis is a statistical measure that's used to describe the distribution, or skewness , of observed data around the mean, sometimes referred to as the volatility of volatility.Data that follows a mesokurtic distribution shows an excess kurtosis of zero or close to zero.