E-122
Calculation formula used for each command
A
= –
B
(
)
–
C
(
)
n
Σ
y
n
Σ
x
n
Σ
x
2
B
=
S
xx
.
S
x
2
x
2
– (
S
xx
2
)
2
S
xy
.
S
x
2
x
2
–
S
x
2
y
.
S
xx
2
C
=
S
xx
.
S
x
2
x
2
– (
S
xx
2
)
2
S
x
2
y
.
S
xx
–
S
xy
.
S
xx
2
(
Σ
x
)
2
Sxx
=
Σ
x
2
–
n
Sxy
=
Σ
xy
–
n
(
Σ
x
.
Σ
y
)
Sxx
2
=
Σ
x
3
–
n
(
Σ
x
.
Σ
x
2
)
Sx
2
x
2
=
Σ
x
4
–
n
(
Σ
x
2
)
2
Sx
2
y
=
Σ
x
2
y
–
n
(
Σ
x
2
.
Σ
y
)
m
1
=
2
C
–
B
+
B
2
–
4
C
(
A
–
y
)
m
2
=
2
C
–
B
–
B
2
–
4
C
(
A
–
y
)
n
=
A
+
Bx
+
Cx
2
Reg Sub-menu (
17
(S-MENU)
7
(Reg))
Select this
When you want to obtain this:
menu item:
1
A
Regression coefficient constant term A
2
B
Linear coefficient B of the regression
coefficients
3
C
Quadratic coefficient C of the regression
coefficients
4
m
1
Estimated value of
x
1
5
m
2
Estimated value of
x
2
6
n
Estimated value of
y