Absolute and Relative measures of Dispersion

Absolute measures of Dispersion are expressed in same units in which original data is presented but these measures cannot be used to compare the variations between the two series. Relative measures are not expressed in units but it is a pure number. It is the ratios of absolute dispersion to an appropriate average such as co-efficient of Standard Deviation or Co-efficient of Mean Deviation.

Absolute Measures

  • Range
  • quartile Deviation
  • Mean Deviation
  • Standard Deviation
  • Lorenz Curve

Relative Measure

  • Co-efficient of Range
  • Co-efficient of Quartile Deviation
  • Co-efficient of mean Deviation
  • co-efficient of Variation.