Skewness And Kurtosis Meaning. Skewness is a measure of symmetry or more precisely the lack of symmetry. Govern the kurtosis effect far more than the values near the mean peak.
A distribution or data set is symmetric if it looks the same to the left and right of the center point. Use kurtosis to help you initially understand general characteristics about the distribution of your data. Now let s look at the definitions of these numerical measures.
Kurtosis value of 0.
Data that follow a normal distribution perfectly have a kurtosis value of 0. Skewness moments and kurtosis introduction the measures of central tendency and variation discussed in previous chapters do not reveal the entire story about a frequency distribution. Statistically two numerical measures of shape skewness and excess kurtosis can be used to test for normality. Kurtosis value of 0.
