Curve Skewness And Kurtosis. Aug 25 2020 The green curve is called the uniform distribution. Kurtosis can be described in the following ways.
Skewness is an indicator of lack of symmetry ie. A distribution or data set is symmetric if it looks the same to the left and right of the center point. This is analogous to the definition of kurtosis as the fourth cumulant normalized by the square of the second cumulant.
As with skewness a general guideline is that kurtosis within 1 of the normal distributions kurtosis indicates sufficient normality.
Whereas skewness measures symmetry in a distribution kurtosis measures the heaviness of the tails or the peakedness. It helps you identify the side towards which your data is inclined. The kurtosis of the uniform distribution is 18. When it is less than 3 the curve has a flatter top and relatively wider tails than the normal curve and is said to be platykurtic.
