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Uses:- A pie diagram is useful when we want to show relative positions ( proportions ) of the figures which make the total. It is also useful when the components are many in number.

Note:- The sectors of the circle ( i.e. of a pie diagram) are ordered from largest to the smallest for easier interpretation of the data and they must be drawn in the counter-clockwise direction.

Index

3.1 Introduction
3.2 Comparison Between Tabular And Diagrammatic Presentation
3.3 Difference Between Diagrams And Graphs
3.4 General Principles Of Constructing Diagrams
3.5 Bar Diagrams
3.6 Pie Chart
3.7 Graphs
3.8 Box and Whiskers

Chapter 4

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