Uses of Coefficient of Variation
Coefficient of variation is used to know the consistency of the data. By consistency we mean the uniformity in the values of the data/distribution from the arithmetic mean of the data/distribution. A distribution with a smaller $$C.V$$ than the other is taken as more consistent than the other.
$$C.V$$ is also very useful when comparing two or more sets of data that are measured in different units of measurement.