The following formula is involved in the calculation of coefficient of variation values:
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Coefficient of variation:

where σ is the standard deviation, and μ is the mean.
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The following references can be used to cite this coefficient of variation calculator:
 | Soper, D.S. (2013). Coefficient of Variation Calculator [Software]. Available from http://www.danielsoper.com/statcalc |
 | Keller, G. (2011). Statistics for Management and Economics (9th edition). Mason, OH: South-Western Cengage. |