E-20
Data Input Precautions
•
S
S
inputs the same data twice.
• You can also input multiple entries of the same data us-
ing
A
G
. To input the data 110 ten times, for example,
press 110
A
G
10
S
.
• The above results can be obtained in any order, and not
necessarily that shown above.
• To delete data you have just input, press
A
U
.
k
Regression Calculations (REG Mode)
• Press
F
F
2
(fx-85W) to enter the REG mode and
then select one of the following regression types. For
other models, press
F
3
.
1
: Linear regression
2
: Logarithmic regression
3
: Exponential regression
r
1
: Power regression
r
2
: Inverse regression
r
3
: Quadratic regression
• Data input always starts with
A
m
=
to clear statisti-
cal memory.
• The values produced by a regression calculation depend
on the values input, and results can be recalled using
the key operations shown in the table below.
A
N
x
σ
n
-1
A
l
p
A
d
y
σ
n
A
c
y
σ
n
-1
A
q
Regression coefficient A
A
w
Regression coefficient B
A
e
Regression coefficient C
A
u
Correlation coefficient
r
A
O
m
A
b
n
0
G
Σ
x
2
0
H
Σ
x
0
k
n
0
h
Σ
y
2
0
n
Σ
y
0
o
Σ
xy
0
M
Σ
x
3
0
x
Σ
x
2
y
0
y
Σ
x
4
A
M
o
A
A
x
σ
n
