Sharp EL-9900 Operation Manual page 15

GRAPHICAL PORTRAYAL OF A
TWO-VARIABLE DATA SET
Steps for drawing a scatter diagram of a two-variable data set
1. Consider the following table listing the revenue for a large corporation:
Year
1
2
3
4
5
6
7
2. Access the statistics data entry screen and delete old data.
3. Enter the data using L1 for the year and L2 for the revenue (in millions
of dollars). Check the data and correct any errors you may find.
4. Press STAT PLOT A (PLOT1) ENTER to access the PLOT1 set up
screen. To turn PLOT 1 on, press ENTER . Press ▼
to set the data to two-variable. Set L1 for the x variable by pressing
▼
2ndF
the y variable. To set the graph to scatter diagram, press STAT PLOT
G (S.D.) and 3 (Scattr ).
5. Construct an autoscaled scatter diagram of this data set by pressing ZOOM
A (ZOOM) 9 (Stat).
6. Press TRACE and press
Ymin= 48.63, and Ymax= 52.03.
Advanced Keyboard/STATISTICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Revenue (in millions of dollars)
48.63
48.86
48.91
49.69
51.10
52.00
52.03
L1 ENTER . Press 2ndF
repeatedly to verify that Xmin= 1, Xmax= 7,
L2 ENTER to set L2 for
13
ENTER