Kelly’s Coefficient of Skewness for grouped data

Use this calculator to find the Kelly’s coefficient of skewness for grouped (raw) data.

Kelly's Coeff. of Skewness Calculator
Type of Freq. Dist. DiscreteContinuous
Enter the Classes for X (Separated by comma,)
Enter the frequencies (f) (Separated by comma,)
Results
Number of Obs. (n):
First Decile : ($D_1$)
Sample Median : ($D_5$)
Nineth Decile : ($D_9$)
Kelly's Coeff. of Skewness :

Kelly’s Coefficient of Skewness for grouped data

$$ \begin{eqnarray*} Sk& = &\frac{D_9+D_1 -2*Median}{D_9-D_1} \end{eqnarray*} $$

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