Introducing the Topic
In this chapter, you and your students will learn how to use the Sharp graphing
calculator to graphically portray a two-variable data set with a statistical graph
called a scatter diagram or scatter plot.
Calculator Operations
Before drawing a scatter diagram, data must be entered on the statistics data
entry screen. You can either enter new data or recall a data set that has been
stored within a matrix. (Refer to Chapter 5 for discussion on entering, storing
and/or recalling a two-variable data set.) 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
32 Graphical Portrayal of a Two-Variable Data Set/STATISTICS USINGTHE SHARP EL-9600
GRAPHICAL PORTRAYAL OF A TWO-VARIABLE DATA SET