Texas Instruments TI-83-Plus Software Guide


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

Texas Instruments TI-83-Plus Specifications

General

Display Type	LCD
Display Resolution	96 x 64 pixels
Power Source	4 AAA batteries
Programming Language	TI-BASIC, Z80 Assembly
Backup Power	CR1616 or CR1620 lithium battery
RAM	24 KB
Processor	Zilog Z80
Weight	7.4 oz (210 g) with batteries
Dimensions	7.3 x 3.5 x 0.9 inches