Sharp EL-9600 manual Graphical Portrayal TWO-VARIABLE Data SET, Zoom

NAME _____________________________________________________ CLASS __________ DATE __________

7.1

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 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

to set the data to two-variable. Set L1 for the

▼

▼

ENTER

x variable by pressing

▼

2ndF

L1

ENTER

. Press

2ndF

L2

to set L2 for the y variable. To set the graph to scatter diagram,

ENTER

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

and press

▼ repeatedly to verify that Xmin= 1990,

TRACE

Xmax= 1996, Ymin= 48.63, and Ymax= 52.03.

Blackline Masters/STATISTICS USING THE SHARP EL-9600 75

Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.