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Confidence Interval of the 
Algebraically speaking 95%CI (CV) = CV ± t _{α=0.05; df=(n1)} SE (CV) where the standard error (SE) of the coefficient of variation (CV) is approximately:
and the standard error (SE) of the coefficient of variation corrected for bias (CV*) is:

These confidence limits to the coefficient of variation are only valid if sampling is from an approximately normally distributed population.
