Data Presentation.

Mathematics J.S.S 2 Third Term

Theme: Mensuration and Geometry

Sub Theme: Shapes

WEEK 9

Data Presentation.

Performance Objectives

Students should be able to;

1. Draw pie charts
2. Read information from pie charts
3. Generate and use data for statistical purposes
4. Interpret and use tables, charts, records and schedules

Pictogram

Content

A pictogram uses pictures or drawings to give a quick and easy meaning to statistical data.

Bar chart

A bar chart represents the data as horizontal or vertical bars. The length of each bar is proportional to the amount that it represents.

There are 3 main types of bar charts.

Horizontal bar charts, vertical bar chart and double bar charts.

When constructing a bar chart it is important to choose a suitable scale to…