What is the Skewness Calculator?

The Skewness Calculator measures the asymmetry of a dataset’s distribution around its mean. Positive skewness indicates that the tail on the right side is longer or fatter, while negative skewness indicates a longer or fatter left tail. This calculator computes the mean and standard deviation, then finds deviations from the mean, squares, and cubes of these deviations. Using the sample skewness formula Skewness=n∑(x−xˉ)3(n−1)(n−2)s3\text{Skewness} = \frac{n \sum{(x – \bar{x})^3}}{(n-1)(n-2)s^3}Skewness=(n−1)(n−2)s3n∑(x−xˉ)3​, it calculates the skewness of the data. A detailed table displays each value, its deviation from the mean, squared deviation, and cubed deviation, allowing step-by-step verification of the calculation.

How to Use:

1. Enter Values: Input numeric values separated by commas (e.g., 10, 12, 15, 18, 20).
2. Click “Calculate”: The calculator finds the mean, standard deviation, sums of squared and cubed deviations, and the skewness value.
3. View Table: The step-by-step table shows deviations and powers for each value, providing full transparency of the calculation.