Type of Measures of Dispersion
a. Absolute Measure: The measure of dispersion which is expressed in terms of the units of the observations( e, g, Rupees , metre , Years etc,
a.Range
b.Quartile Deviation ( or semi inter quartile range)
c.Mean deviation
d.Standard deviation
b. Relative Measure: A measure of dispersion which is independent of unit or may involve the point about which the deviations are taken is suggested. Such measure of dispersion is known as relative measure of dispersion or coefficient of dispersion. There is one relative measure corresponding to an absolute of dispersion.
a.Coefficient of Quartile deviation
b.Coefficient of Dispersion
c.Coefficient of Variation