Texas Instruments TI-73 EXPLORER Benutzerhandbuch
Chapter 7: Statistical Analyses
143
7307ENG.DOC CH 7, Statistical Analyses, English Julie Hewlett Revised: 07/29/98 12:07 PM Printed: 05/19/99
9:00 AM Page 143 of 22
Graph a scatter plot for
L
1
and
L
2
, where
L
1
={1,3,4,5,5,7,8,9}
and
L
2
={1,4,2,3,4,6,7,9}
, and use
LinReg(ax+b)
to draw the linear
regression line through the points.
1. Set Decimal Notation mode
to
2
, if desired.
. # " " " b
2. After entering the lists,
define
Plot1
as a scatter plot
using
L
1
and
L
2
, as shown to
the right.
- e
For more information on defining stat
plots, see Chapter 6: Statistical Plots.
3. Turn off
Y
3
and
Y
4
, if they
have been previously
defined and selected.
- l :
- }
- }
2
6
3
¡
4
b
4. Find the
LinReg(ax+b)
line,
and store the results to
Y
2
.
- l :
- v !
- v !
5
- }
2
2
b
Specifying
¨
1 and
¨
2 is optional since
they are the default
listnames.
However, if you were using other list
names, you would have to enter them
before the
Yn variable.
³