Casio fx-50F PLUS - Manual (Page 44)

E-43
A Inputting Sample Data
Frequency On (FreqOn)
The following shows the key operations required when inputting class values ( x
1 , y
1 ), ( x
2 ,
y
2 ), ...( xn , yn ), and frequencies Freq1, Freq2, ... Freq n .
{ x
1 }
,{ y
1 }
1,(;) {Freq1} m(DT)
{ x
2 }
,{ y
2 }
1,(;) {Freq2} m(DT)
{ xn }
,{ yn }
1,(;) {Freq n }
m(DT)
Note
If the frequency of a class value is only one, you can input it by pressing { xn }
,{ yn }
m(DT)
only (without specifying the frequency).
Frequency Off (FreqOff)
In this case, input each individual data item as shown below.
{ x
1
}
,{ y
1
}
m(DT)
{ x
2
}
,{ y
2
}
m(DT)
{ xn }
,{ yn }
m(DT)
A Viewing Current Sample Data
After inputting sample data, you can press c to scroll through the data in the sequence
you input it. The $ symbol indicates there is data below the sample that is currently on the
display. The ` symbol indicates there is data above.
When the statistical frequency setting is FreqOn, data is displayed in the sequence: x
1
, y
1
,
Freq1, x
2
, y
2
, Freq2, and so on. In the case of FreqOff, it is displayed in the sequence: x
1
,
y
1
, x
2
, y
2
, x
3
, y
3
, and so on. You can also use f to scroll in the reverse direction.
A Editing a Data Sample
To edit a data sample, recall it, input the new value(s), and then press
E.
A Deleting a Data Sample
To delete a data sample, recall it and then press 1m(CL).
A Deleting All Sample Data
See “Deleting All Sample Data” (page 41).
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 or p ) value of the current sample data, for example, perform the
operation shown below.
12(S-VAR) 1(VAR)
1E
x x
σn
x
σn
–1
1 2 3
x x
σn
x
σn
–1
1 2 3
x
115
x
115