How it works
Sample coefficient of variation = sample standard deviation / arithmetic mean × 100. Requires at least two positive observations.
Input definitions
- Positive observations
- Plain text; maximum 200,000 characters.
A worked example
- Positive observations
- 10,20,30
Assumptions & limits
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.
Common questions
Should I compare variables with arbitrary zero points?
No. CV is most meaningful for ratio-scale positive measurements with a meaningful zero. Celsius temperatures are a common unsuitable example.
How does Coefficient of variation work?
Sample coefficient of variation = sample standard deviation / arithmetic mean × 100. Requires at least two positive observations.
What should I check before using Coefficient of variation?
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.