Texas Instruments TI-73 EXPLORER Benutzerhandbuch

Seite von 364
Chapter 7: Statistical Analyses     
141
7307ENG.DOC   CH 7, Statistical Analyses, English   Julie Hewlett   Revised: 07/29/98 12:07 PM   Printed: 05/19/99
9:00 AM   Page 141 of 22
If freq is omitted, all values are used once. If XList and YList
are not specified, the default list names are 
L
1
 and 
L
2
. To
access 
Y
n
 variables, press - } 
2
:
Y-Vars
.
Med-Med
 [XList,YList,freq,Yn]
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 
Med-Med
 to draw the median-median
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 
Med-Med
 line, and
store the results to 
Y
2
.
: - v !
4
- }
2
   
2
b
Specifying 
¨
1
 and 
¨
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