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These measures are calculated for the comparison of dispersion in two or more than two sets of observations. These measures are free of the units in which the original data is measured. If the original data is in dollar or kilometers, we do not use these units with relative measure of dispersion. These measures are a sort of ratio and are called coefficients. Each absolute measure of dispersion can be converted into its relative measure. Thus the relative measures of dispersion are:

  1. Coefficient of Range or Coefficient of Dispersion.
  2. Coefficient of Quartile Deviation or Quartile Coefficient of Dispersion.
  3. Coefficient of Mean Deviation or Mean Deviation of Dispersion.
  4. Coefficient of Standard Deviation or Standard Coefficient of Dispersion.

Coefficient of Variation (a special case of Standard Coefficient of Dispersion)

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14y ago

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