TIp 6: Using Lists
Fundamental Topics in Science © 2001 Texas Instruments
TIp 6-4
Try-It!
Ë
on Your TI
83 Plus
(continued)
Display the Sum and Average of All Elements in a List
On the Home screen, find the sum of Jian’s test scores (
L
2
).
To Do This Press Display
1. Return to the Home screen and clear
the current line, if needed.
Tip:
Once you exit the application, you can press
\
to return to the Home screen from any
menu or command.
\
:
2. Select
sum(
from the
MATH
menu.
\
"
"
5:sum(
3. Select the list (
L
2
) you want, and
display the sum.
\
2:L
2
E
b
4. Divide
L
2
by 5 (the number of test
scores) to find the average (or mean)
of the list of the scores.
Note
:
Ans
is the previous
answer
, 425.
F
5
b
Ans
= 425
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