© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-34
Û
: A Guide for Teachers
23
WNBA Stats—2-Variable Statistics
Overview
Students use WNBA Statistics to explore the
relationship between 2 variables. They use the TI
-
34
Û
to compute the regression equation and evaluate
some values.
Math Concepts
• 2-variable
statistics
Materials
• TI
-
34
Û
• pencil
• student activity
(page 26)
Activity
Present the following problem to students:
Do you think WNBA (Women’s National Basketball
Association) playing time (in minutes per game)
is related to how many points a player scores? Do
you think it is related to how many rebounds they
get? Or is it related to their field-goal percentage?
Procedure
1.
Put the calculator in
STAT
mode.
2.
Enter the data for points per game and playing
time in minutes. Enter the points as the
X
-variable and playing time as the
Y
-variable.
1. Press
%
t
and press
"
to select
2 -VAR
.
1-VAR 2-VAR
2. Press
<
.
1. Press
v
.
X1=
2. Enter 10.1 (Rhonda
Mapp’s points).
X1=10.1
3. Press
$
.
Y1=1
4. Enter 21.7 (Rhonda
Mapp’s playing time).
Y1=21.7
5. Press
$
to enter the data
for the second player.
6. Continue to enter data for
each player in the chart.
Press
$
after entering
each number.
