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Blackline Masters/STATISTICS USING THE SHARP EL-9600 75
Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for drawing a scatter diagram of a two-variable data set
1. Consider the following table listing the revenue for a large corporation:
Y
ear Revenue (in millions of dollars)
1990 48.63
1991 48.86
1992 48.91
1993 49.69
1994 51.10
1995 52.00
1996 52.03
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 2ndF STAT PLOT , touch A PLOT1, and press ENTER to
access the PLOT1 set up screen. To turn PLOT 1 on, press ENTER .
Press ▼ ENTER to set the data to two-variable. Set L1 for the
x variable by pressing ▼ 2ndF L1 ENTER . Press 2ndF L2
ENTER to set L2 for the y variable. To set the graph to scatter diagram,
press 2ndF STAT PLOT , touch G S.D., and double touch 3 Scattr.
5. Construct an autoscaled scatter diagram of this data set by pressing ZOOM ,
touching A ZOOM, touching on the screen, and double touching 9 Stat
6. Press TRACE and press repeatedly to verify that Xmin= 1990,
Xmax= 1996, Ymin= 48.63, and Ymax= 52.03.
GRAPHICAL PORTRAYAL OF
A TWO-VARIABLE DATA SET
7.1
NAME _____________________________________________________ CLASS __________ DATE __________
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