Page 135 - DCOM203_DMGT204_QUANTITATIVE_TECHNIQUES_I

Quantitative Techniques – I Neha Tikoo, Lovely Professional University

Notes Unit 7: Measures of Dispersion

CONTENTS
Objectives
Introduction
7.1 Definitions

7.2 Objectives of Measuring Dispersion
7.3 Characteristics of a Good Measure of Dispersion
7.4 Measures of Dispersion
7.5 Range
7.5.1 Merits and Demerits of Range

7.5.2 Uses of Range
7.6 Interquartile Range
7.6.1 Interpercentile Range
7.6.2 Quartile Deviation or Semi-Interquartile Range
7.6.3 Merits and Demerits of Quartile Deviation
7.7 Mean Deviation or Average Deviation

7.7.1 Calculation of Mean Deviation
7.7.2 Merits and Demerits of Mean Deviation
7.8 Standard Deviation
7.8.1 Calculation of Standard Deviation
7.8.2 Coefficient of Variation

7.8.3 Properties of Standard Deviation
7.8.4 Merits, Demerits and Uses of Standard Deviation
7.8.5 Skewness
7.8.6 Graphical Measure of Dispersion
7.8.7 Empirical relation among various measures of dispersions
7.9 Summary
7.10 Keywords

7.11 Review Questions
7.12 Further Readings

Objectives

After studying this unit, you will be able to:

Define the term dispersion and range
Discuss the objectives and characteristics of a good measure of dispersion

130 LOVELY PROFESSIONAL UNIVERSITY