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Chapter 5
Statistical Functions
Statistical calculations can be performed in STAT mode. The
symbol will be visible if you are in STAT mode.
There are seven sub-modes within STAT mode, corresponding
to each of the functions below:
Key operation Sub-mode Display
m
1
0
m
1
1
m
1
2
m
1
3
m
1
4
m
1
5
m
1
6
SD: Single-variable statistics
LINE: Linear regression
QUAD: Quadratic regression
EXP: Exponential regression
LOG: Logarithmic regression
PWR: Power regression
INV: Inverse regression
Stat —
Stat 1
Stat 2
Stat 3
Stat 4
Stat 5
Stat 6
Entering statistical data
Before you can perform statistical calculations, you will need to
enter your data. In STAT mode, use
>
and
J
(the
Q
key) to enter the following:
For a single-variable data set:
Value
J
Value
>
frequency
J
(To enter multiples of the same
value)
For a two-variable data set:
x
value
>
y
value
J
x
value
>
y
value
>
frequency
J
(To enter multiples
of the same
x
and
y
values)
Note: Before entering data, clear any previously entered data
from memory by doing either of the following:
• Press
.
b
in STAT mode.
• Switch sub-modes within STAT mode.