Sharp EL9900 manual Pie Charts and Proportions, Before

EL-9900 Graphing Calculator

Pie Charts and Proportions

Pie charts enable a quick and clear overview of how portions of data relate to the whole.

Example

A questionnaire asking students about their favourite colour elicited the following results: Red: 20 students

Blue: 12 students

Green: 25 students

Pink: 10 students

Yellow: 6 students

1. Make a pie chart based on this data.

2. Find the percentage for each colour.

	Before	There may be differences in the results of calculations and graph plotting depending on the setting.
Starting		Return all settings to the default value and delete all data.
	Step & Key Operation		Display	Notes

1-1Enter the data.

STAT A ENTER 2 0 ENTER 1

2 ENTER 2 5 ENTER 1 0

ENTER 6 ENTER

1-2Choose the setting for making a pie chart.

STAT A ENTER ENTER

PLOT

STAT F 1

PLOT

1-3Make a pie chart.

GRAPH

2-1Choose the setting for displaying by percentages.

STAT	A		ENTER
PLOT
STAT	F	2
PLOT

2-2Make another pie chart.

GRAPH

Red: 27.39%

Blue: 16.43%

Green: 34.24%

Pink: 13.69%

Yellow: 8.21%

Pie charts can be made easily with the EL-9900.

2-1