Positive Kurtosis Meaning. The kurtosis is positive with a value greater than 3 platykurtic. Leptokurtic indicates a positive excess kurtosis.
Which definition of kurtosis is used is a matter of convention this handbook uses the original definition. Further information the new definition of kurtosis measures tailedness rather than peakedness shapes of distributions kahn academy normal distribution bell curve what a p value tells you about statistical significance statistics for psychology. In finance a leptokurtic distribution shows that the investment returns may be prone to extreme values on either side.
Data that follows a mesokurtic distribution shows an excess kurtosis of zero or close to zero.
The kurtosis is positive with a value greater than 3 platykurtic. The solid line shows the normal distribution and the dotted line shows a distribution with a positive kurtosis value. Sample kurtosis definitions a natural but biased estimator. The distribution has a lower and wider peak and thinner tails.