Sharp EL738C EL-738 Operation Manual - Page 65

Statistical Functions

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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 m 1 0 m 1 1 m 1 2 m 1 3 m 1 4 m 1 5 m 1 6 Sub-mode SD: Single-variable statistics LINE: Linear regression QUAD: Quadratic regression EXP: Exponential regression LOG: Logarithmic regression PWR: Power regression INV: Inverse regression Display 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. 64

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64
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.