–19–
#060
A =
n
Σy – B
.
Σx
o
Σx
n
=
m
y – A
B
=
x
σn
n
=
Σ (x – o)
2
xσn –1
n – 1
=
Σ (x – o)
2
p
Σy
n
=
y
σn
n
=
Σ (y – p)
2
yσn –1
n – 1
=
Σ (y – p)
2
B
=
n
.
Σx
2
–
(
Σx
)
2
n
.
Σxy – Σx
.
Σy
r
=
{
n
.
Σx
2
–
(
Σx
)
2
}{
n
.
Σy
2
–
(
Σy
)
2
}
n
.
Σxy – Σx
.
Σy
n = A + Bx
