Coefficient of variation
Coefficient of variation: use observations. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
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Formula & explanation
CV = sample standard deviation / mean × 100
Variables & units
- Observations
- comma separated
Worked example
For 1,2,3, sample SD=1 and mean=2, so CV=50%.
Assumptions
Meaningful for ratio-scale data; undefined at zero mean and restricted here to positive means.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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