Notes on the types of Absolute Measures of Dispersion

The following are the commonly used absolute measures of dispersion or variability.

(i) Range

(ii) Quartile Deviation

(iii) Mean Deviation

(iv) Standard Deviation

(v) Lorenz Curve

The first two are called as the ‘Method of limits’ and the Third and Fourth methods are known as ‘Method of Averaging Deviations’. The last method is the ‘graphic method’.