Statistics (II)

Mathematics SSS 1 Third Term

WEEK 9

Statistics (II)

Performance Objectives

Students should be able to;

1. Calculate sectorial angles
2. Draw pie chat correctly
3. Interpret data using Pie Chat

Line Graph

Content

Line graphs are used to show trends over a period of time and have the advantage that they can be extended. To draw a line graph, plot the given data as a series of points and then join the points together by straight lines. The lines can be drawn vertically or horizontally and have no thickness.

Examples

1. A comparison of traffic densities in a number of countries produced the following results.

	Country	Number of Vehicles
	U. S.A	61
	U.K	51
	West Germany…