(I) Method of limits:

(1) The range (2) Inter-quatrile range (3) Percentile range

(II) Method of Averages:

(1) Quartile deviation (2) Mean deviation

(3) Standard Deviation and (4) Other measures.

Note that, we are going to study some of these and not all.

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Index

5.1 Introduction
5.2 Methods of computing dispersion
5.3 Range
5.4 Mean Deviation
5.5 Variance
5.6 Coefficient of Variation
5.7 Percentile
5.8 Quartiles and interquartile range
5.9 Skewness moments and Kurtosis
5.10 Kurtosis

Chapter 6