Casio fx-50F Manual De Usuario
E-41
A Deleting All Sample Data
Perform the following key operation to delete all sample data.
19(CLR)1(Stat)E
If you do not want to delete all sample data, press
A in place of E in the above operation.
A Statistical Calculations Using Input Sample Data
To perform a statistical calculation, input the applicable command and then press
E. To
determine the mean (
o
) value of the current input sample data, for example, perform the
operation shown below.
12(S-VAR)
1E
* This is one example of possible calculation results.
A SD Mode Statistical Command Reference
x
x
σn
x
σn
–1
1 2
3
x
x
σn
x
σn
–1
1 2
3
x
2533333333
x
2533333333
ƙx
2
11(S-SUM)1
Obtains the sum of squares of the sample
data.
data.
Σ x
2
=
Σ x
i
2
ƙx
11(S-SUM)2
Obtains the sum of the sample data.
Σ x
=
Σ x
i
n
11(S-SUM)3
Obtains the number of samples.
n
= (number of
x
-data items)
¯ x
12(S-VAR) 1
Obtains the mean.
o
Σ
x
i
n
=
x
σ
n
12(S-VAR) 2
Obtains the population standard deviation.
x
σ
n
n
=
Σ(x
i
–
o)
2
x
σ
n
–1
12(S-VAR) 3
Obtains the sample standard deviation.
x
σ
n
–1
n
– 1
=
Σ
(x
i
–
o)
2
minX
12(S-VAR) e1
Determines the minimum value of the
samples.
samples.
maxX
12(S-VAR) e2
Determines the maximum value of the
samples.
samples.