用户说明书
Ck-57
A
ߥ࿅ืࠧࣜࣜާӹ
၂ߥ!
த ࣜާ
ߥާوիื b
a =
n
Σy
i
– b
.
Σx
i
ߥ࿅ื c
b =
n
.
Σx
i
2
–
(
Σx
i
)
2
n
.
Σx
i
y
i
– Σx
i
.
Σy
i
ߔ࿅ื
s
r =
{n
.
Σx
i
2
–
(
Σx
i
)
2
}{n
.
Σy
i
2
–
(
Σy
i
)
2
}
n
.
Σx
i
y
i
– Σx
i
.
Σy
i
ࣜ
m
m
y – a
b
=
ࣜ
n
n
= a + bx
۠״ߥ
த ࣜާ
ߥާوիื b
a = – b
(
)
– c
(
)
n
Σy
i
n
Σx
i
n
Σx
i
2
ߥ࿅ื c
b =
Sxx
.
Sx
2
x
2
– (Sxx
2
)
2
Sxy
.
Sx
2
x
2
– Sx
2
y
.
Sxx
2
ߥ࿅ื d
c =
Sxx
.
Sx
2
x
2
– (Sxx
2
)
2
Sx
2
y
.
Sxx
– S
xy
.
Sxx
2
دกLj
(Σx
i
)
2
Sxx = Σx
i
2
–
n
Sxy = Σx
i
y
i
–
n
(Σx
i
.
Σy
i
)
Sxx
2
= Σx
i
3
–
n
(Σx
i
.
Σx
i
2
)
Sx
2
x
2
= Σx
i
4
–
n
(Σx
i
2
)
2
Sx
2
y = Σx
i
2
y
i
–
n
(Σx
i
2
.
Σy
i
)