Data Presentation

Mathematics J.S.S 3 Third Term

Theme: Measurement and geometry

Sub Theme: Shapes

WEEK 5

Data Presentation

Performance Objectives

Students should be able to;

1. Represent information on Pie chart
2. Interpret a pie chart

Pie Chart

Content

A pie chart is a circular graph showing a distribution. The pie chart is divided into sectors that are proportional to the frequency or class frequencies of items in a distribution.

The total frequencies of the distribution in a pie chart are equal to 360⁰ which is the angle in a circle.

 

Example 1

The table below shows grades obtained in an examination. Construct a pir chart to show the information.

Grade	A	B	C	D	E
Frequency	34	42	30	40	34

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