Casio FC-200V User Guide - Page 119

Commands when Linear Regression, Calculation A+BX Is Selected - use xy

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A Commands when Linear Regression Calculation (A+BX) Is Selected With linear regression, regression is performed in accordance with the following model equation. y = A + BX The following are the commands that appear on the submenus that appear when you select 4(Sum), 5(Var), 6(MinMax), or 7(Reg) on the STAT menu while linear regression is selected as the statistical calculation type. Calculation formula used for each command o = Σx n xσn = Σ (x - o)2 n xσn -1 = p = Σy n Σ (x - o)2 n - 1 yσn = Σ (y - p)2 n yσn -1 = Σ (y - p)2 n - 1 A = Σy - B.Σx n B = n.Σxy - n.Σx2 - Σx.Σy (Σ x)2 r = n.Σxy - Σx.Σy {n.Σx2 - (Σx)2}{n.Σy2 - (Σy)2} m = y - B A n = A + Bx E-117

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E-117
A
Commands when Linear Regression
Calculation (A+BX) Is Selected
With linear regression, regression is performed in
accordance with the following model equation.
y
=
A
+
BX
The following are the commands that appear on the sub-
menus that appear when you select
4
(Sum),
5
(Var),
6
(MinMax), or
7
(Reg) on the STAT menu while linear
regression is selected as the statistical calculation type.
Calculation formula used for each command
A
=
n
Σ
y
–
B
.
Σ
x
o
Σ
x
n
=
m
y
–
A
B
=
x
σ
n
n
=
Σ
(
x
–
o
)
2
x
σ
n
–1
n
– 1
=
Σ
(
x
–
o
)
2
p
Σ
y
n
=
y
σ
n
n
=
Σ
(
y
–
p
)
2
y
σ
n
–1
n
– 1
=
Σ
(
y
–
p
)
2
B
=
n
.
Σ
x
2
–
(
Σ
x
)
2
n
.
Σ
xy
–
Σ
x
.
Σ
y
r
=
{
n
.
Σ
x
2
–
(
Σ
x
)
2
}{
n
.
Σ
y
2
–
(
Σ
y
)
2
}
n
.
Σ
xy
–
Σ
x
.
Σ
y
n
=
A
+
Bx