Skewness Calculator

Find the skewness of a small data set.

Skewness 0.0343
Mean 13.2

Formula: g₁ = (Σ(x−mean)³ ÷ n) ÷ σ³

Step-by-step with your numbers:
1. Values used:
2. Value 1 = 4
3. Value 2 = 8
4. Value 3 = 15
5. Value 4 = 16
6. Value 5 = 23
7.
8. Skewness = 0.0343
9. Mean = 13.2
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Skewness measures the asymmetry of a distribution.

The math behind it

g₁ = (average cubed deviation) ÷ σ³. Positive = right tail; negative = left tail; 0 = symmetric.

Worked example

4,8,15,16,23 → ~0.13 (slightly right-skewed).

FAQ

Zero skew?

Indicates a symmetric distribution (like the normal).