E-81
¯ x
z
7
(STAT)
2
(VAR)
2
Obtains the mean of the sample
x
-data.
x
σ
n
z
7
(STAT)
2
(VAR)
3
Obtains the population standard deviation of the sample
x
-data.
x
σ
n
–1
z
7
(STAT)
2
(VAR)
4
Obtains the sample standard deviation of the sample
x
-data.
¯ y
z
7
(STAT)
2
(VAR)
5
Obtains the mean of the sample
y
-data.
y
σ
n
z
7
(STAT)
2
(VAR)
6
Obtains the population standard deviation of the sample
y
-data.
y
σ
n
–1
z
7
(STAT)
2
(VAR)
7
Obtains the sample standard deviation of the sample
y
-data.
y
σ
n
–1
n
– 1
=
Σ
(
y
i
–
y
)
2
Sum Commands
ƙ
x
2
z
7
(STAT)
2
(VAR)
c
1
Obtains the sum of squares of the sample
x
-data.
Σ
x
2
=
Σ
x
i
2
ƙ
x
z
7
(STAT)
2
(VAR)
c
2
Obtains the sum of the sample
x
-data.
Σ
x
=
Σ
x
i
o
Σ
x
i
n
=
o
Σ
x
i
n
=
x
σ
n
n
=
Σ
(
x
i
–
o
)
2
x
σ
n
n
=
Σ
(
x
i
–
o
)
2
x
σ
n
–1
n
– 1
=
Σ
(
x
i
–
o
)
2
x
σ
n
–1
n
– 1
=
Σ
(
x
i
–
o
)
2
p
Σ
y
i
n
=
p
Σ
y
i
n
=
y
σ
n
n
=
Σ
(
y
i
–
y
)
2
y
σ
n
n
=
Σ
(
y
i
–
y
)
2
Summary of Contents for fx-5800P
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