How to calculate variance with Casio calculator?

1. First, open the electronic calculator and press the "Mode/Settings" key on the left side of "On".

2. Select "2: STAT" in the three pop-up modes, that is, press the number key 2.

3. Select "1: 1-var" in the pop-up interface, that is, press the number key 1.

4. You need to enter the number to be calculated. For example, if the standard deviation to be calculated is 2,4, 1.4,2.1.4, then enter "2=, 4=, 1.4=, 2. 1=, 4=" in the calculator.

5. After entering the number, press "AC", then select "shift" and press the number key "1". Select "5: var" in the pop-up option bar, that is, press the number key 5.

6. Then four options appear in the calculator display interface. Press the number key 4 to obtain the standard deviation.

7. After getting the standard deviation, we only need to calculate the square of the number, as shown in the figure below.

8. This calculation is the variance value, as shown in the figure below.