Statistical Calculations (Sd/Reg); Statistical Calculation Sample Data; Performing Single-Variable Statistical Calculations - Casio fx-50F User Manual

Statistical Calculations (SD/REG)

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Statistical Calculation Sample Data

A Inputting Sample Data
You can input sample data either with statistical frequency turned on (FreqOn) or off (FreqOff).
The calculator's initial default setting is FreqOn. You can select the input method you want
to use with the setup screen statistical frequency setting (page 9).
A Maximum Number of Input Data Items
The maximum number of data items you can input depends on whether frequency is on
(FreqOn) or off (FreqOff).
Calculation Mode
SD Mode
REG Mode
A Sample Data Clear
All sample data currently in memory is cleared whenever you change to another calculation
mode and when you change the statistical frequency setting.
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Performing Single-variable Statistical Calculations

To perform the example operations in this section, fi rst select SD (
mode.
A Inputting Sample Data
Frequency On (FreqOn)
The following shows the key operations required when inputting class values
and frequencies Freq1, Freq2, ... Freq
, (;) {Freq1}
x
{ }
1
, (;) {Freq2}
x
{ }
2
, (;) {Freq
xn
{ }
Note
If the frequency of a class value is only one, you can input it by pressing {
(without specifying the frequency).
Frequency Setting
n
.
(DT)
(DT)
n
} (DT)
FreqOn
40 items
26 items
E-38
FreqOff
80 items
40 items
4 ) as the calculation
x x xn
, , ... ,
1 2
xn
} (DT) only