Coefficient of Variation Calculator
Statistical Analysis
Coefficient of Variation: 0 %
Standard Deviation: 0
Mean: 0
Interpretation: -
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Understanding Coefficient of Variation (CV)
The coefficient of variation (CV) is a standardized measure of dispersion that shows the extent of variability in relation to the mean. It's expressed as a percentage.
Key Components
Statistical Measures
- Standard Deviation
- Mean
- Relative Variability
- Data Dispersion
- Sample Size
Interpretation Guide
- CV < 15%: Low Variation
- 15% ≤ CV ≤ 30%: Moderate Variation
- CV > 30%: High Variation
- Industry Standards
- Context Dependency
Applications
- Quality Control
- Financial Analysis
- Scientific Research
- Process Monitoring
- Risk Assessment
Frequently Asked Questions
What is a good CV value?
A "good" CV value depends on the context. Generally, lower values indicate less variability relative to the mean. In many fields, CV < 15% is considered good.
When should I use CV?
Use CV when comparing variability between datasets with different units or vastly different means. It's particularly useful in quality control and scientific research.
What are CV limitations?
CV may not be suitable for data with negative values or means close to zero. It's also sensitive to small changes in the mean when the mean is small.
Statistical Disclaimer
This calculator provides basic statistical analysis. For professional applications or critical decisions, consult with a statistics expert.