Casio fx-5800P - Manual (Page 77)

E-76
z7(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 z7(STAT) 2(VAR) 1
Obtains the number of samples.
n = (number of x
i-data items)
¯ x z7(STAT) 2(VAR) 2
Obtains the mean.
x σ
n
z7(STAT) 2(VAR) 3
Obtains the population standard deviation.
x σ
n –1
z7(STAT) 2(VAR) 4
Obtains the sample standard deviation.
ƙx 2 z7(STAT) 2(VAR) c1
Obtains the sum of squares of the sample data.
Σ x 2
=
Σ x
i
2
ƙx z7(STAT) 2(VAR) c2
Obtains the sum of the sample data.
Σ x
=
Σ x
i
minX z7(STAT) 2(VAR) cc1
Determines the minimum value of the samples.
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