Free online Skewness and Kurtosis Calculator – calculates the skewness and kurtosis of a distribution or dataset, To use the calculator, simply enter your data into the text box and click the “Calculate” button.
Enter data seperated by commas
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| Kurtosis: |
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Skewness and Kurtosis Formula
Skewness and kurtosis are statistical measures that describe the shape and distribution of a dataset.
Skewness
Skewness measures the asymmetry of a distribution
skewness formula for data sample
g = Σ(Xi – x̄)³ / s * [n/(n-1)(n-2)]
- g = skewness
- Xi = individual observation
- x̄ = mean of dataset
- s = standard deviation
- n = Number of observations
Kurtosis
Kurtosis measures the “tailedness” or the thickness of the tails of a distribution
Kurtosis formula for data sample
K = Σ(Xi – x̄)⁴ / s * [n(n+1)/(n-1)(n-2)(n-3)] – 3[(n-1)² / (n-2)(n-2)]
- k = kurtosis sample
- Xi = individual observation
- x̄ = mean of dataset
- s = standard deviation
- n = Number of observations