Calculator techniques >>

Calculate Mean & Standard Deviation (for Casio fx-96SG PLUS)

The instructions works on the older Casio fx-95SG PLUS calculator as well.

Take note of the following buttons:

Buttons.png

  1. SHIFT button

  2. Directional buttons (▲ ▼ ◄ ►)

  3. MODE button

Step 1: Enable the 'Frequency' column in calculator

Press SHIFT, followed by MODE to reach the following screen:

2_Setup 1_400px.png

Press ▼ (Down direction key) once:

3_Setup Choose STAT_400px.png

Press 4 to select '4: STAT' :

4_Select Frequency ON_400px.png

Press 1 to enable 'Frequency' column

Step 2: Enter data

Let's consider an example. The following table shows the number of goals scored by the first twenty Manchester United players in the 2012/2013 title winning season.

No. of goals 0 1 2 3 4 5 16 18 30
Players 5 4 3 2 2 1 1 1 1

Let's enter this data in the calculator.

Press MODE:

Press 2 to choose '2: STAT':

2_Select 1-VAR_400px.png

Press 1 to choose '1: 1-VAR'

3_Data Screen_400px.png

(Go back to Step 1 if you didn't obtain the screen above - you need to enable the 'Frequency' column)

Now enter the data into the calculator:

No. of goals (X) 0 1 2 3 4 5 16 18 30
Players (FREQ) 5 4 3 2 2 1 1 1 1

For the first data, press 0 followed by =

For the first data, press 0 followed by =

Enter the rest of the data

Enter the rest of the data

Press AC to return to the main screen.

Step 3: Calculate Mean

Press SHIFT followed by 1:

1_Shift-One_400px.png

Press 4 to select '4: Var'

Press 2 to calculate meanPress 3 to calculate standard deviation

Press 2 to calculate mean

Press 3 to calculate standard deviation

Mean

Mean

Standard deviation

Standard deviation

Once done, press MODE followed by 1 to switch back to normal operation.