Page 59 - DCOM203_DMGT204_QUANTITATIVE_TECHNIQUES_I

Quantitative Techniques – I Neha Tikoo, Lovely Professional University

Notes Unit 4: Presentation of Data

CONTENTS
Objectives
Introduction

4.1 Diagrammatic Presentation
4.1.1 Advantages
4.1.2 Limitations

4.1.3 General Rules for Making Diagrams
4.1.4 Choice of a Suitable Diagram
4.2 Bar Diagrams
4.3 Circular or Pie Diagrams
4.4 Pictogram and Cartogram (Map Diagram)

4.5 Summary
4.6 Keywords
4.7 Review Questions

4.8 Further Readings
Objectives

After studying this unit, you will be able to:
Discuss utility and advantages of diagrammatic presentation
Write the limitations of diagrammatic presentation
State the relevance of General Rules for making diagrams

Explain the concept of bar diagrams and focus on its types
Tell about pie diagrams, pictograms and cartograms

Introduction

An important function of statistics is the presentation of complex mass of data in a simple way
so that it becomes easier to understand. Classification and tabulation are the techniques that
help in presenting the data in an intelligible form. But with increase in volume of data, it
becomes more and more inconvenient to understand even after its classification and tabulation.

4.1 Diagrammatic Presentation

To understand various trends of the data at a glance and to facilitate the comparison of various
situations, the data are presented in the form of diagrams and graphs.

54 LOVELY PROFESSIONAL UNIVERSITY