User manual - fx-5800P

E-76
z
7
(STAT)
2
(VAR)
2
(
o
)
E
This is one example of possible calculation results.
For more information about statistical calculation commands, see the following section.
A
SD Mode Statistical Command Reference
n
z
7
(STAT)
2
(VAR)
1
Obtains the number of samples.
n
= (number of
x
i
-data items)
¯ x
z
7
(STAT)
2
(VAR)
2
Obtains the mean.
x
σ
n
z
7
(STAT)
2
(VAR)
3
Obtains the population standard deviation.
x
σ
n
–1
z
7
(STAT)
2
(VAR)
4
Obtains the sample standard deviation.
ƙ
x
2
z
7
(STAT)
2
(VAR)
c
1
Obtains the sum of squares of the sample data.
Σ
x
2
=
Σ
x
i
2
ƙ
x
z
7
(STAT)
2
(VAR)
c
2
Obtains the sum of the sample data.
Σ
x
=
Σ
x
i
minX
z
7
(STAT)
2
(VAR)
cc
1
Determines the minimum value of the samples.
o
Σx
i
n
=
o
Σx
i
n
=
x
σn
n
=
Σ(x
i
– o)
2
x
σn
n
=
Σ(x
i
– o)
2
x
σn–1
n – 1
=
Σ(x
i
– o)
2
x
σn–1
n – 1
=
Σ(x
i
– o)
2