Sharp EL-9900 - Manual (Page 20)

18
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for drawing a scatter diagram for a two-variable data set
STEP 1: Consider the following table listing the revenue for a large corporation:
Year Revenue (in millions of dollars)
1 48.63
2 48.86
3 48.91
4 49.69
5 51.10
6 52.00
7 52.03
STEP 2: Access the statistics data entry screen and delete old data.
STEP 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.
STEP 4: Press STAT PLOT A (PLOT1) 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 LIST A 1 ENTER . Press 2ndF LIST 2 ENTER to set L2
for the y variable. To set the graph to scatter diagram, press STAT PLOT
G (S.D.) and 3 (Scattr ).
STEP 5: Construct an autoscaled scatter diagram of this data set by pressing ZOOM
A (ZOOM) 9 (Stat).
Press TRACE and press repeatedly to verify that Xmin= 1, Xmax= 7,
Ymin= 48.63, and Ymax= 52.03.
SCATTER DIAGRAM
FOR A TWO-VARIABLE DATA SET
▼
▼