Tag: Variance

  • Measures of Dispersion: Range, Quartile Deviation, Mean Deviation, Standard Deviation, Variance & CV

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    While Measures of Central Tendency give a single central value, Measures of Dispersion (‘Averages of the Second Order’ — Bowley) measure the degree of scatter, spread, or variation of items around that central value. Dispersion measures are classified into Absolute Measures (expressed in original units: Range, Quartile Deviation, Mean Deviation, Standard Deviation) and Relative Measures…