Texas Instruments TI-30X - IIS Scientific Calculator Teachers Manual page 22

Heart Rates — 1-Variable Statistics
© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
Òx
x
 1. Press u.
Òx
n Ï Sx Îx
n should equal the total
number of student sampled.
2. Press " to
average heart rate.
n Ï Sx Îx
3. Press " " " to
Òx Òx
Note: The numbers show the
results of the example described
above. Your students' results will
vary depending on the size of
group and the heart rate readings.
TI-30X ÙS: A Guide for Teachers
(Continued)
22.
to see the
Ï
62.
.
Òx
2
1370.
18