Casio Calculator (FX-83ES)



Mean and Standard Deviation on Casio Calculator (FX-83ES)

Example 1 – List of numbers

Calculate the mean and standard deviation of the following array of numbers.

8, 8, 9, 11, 14

1. Press MODE ( 2 ( 1 (this puts calculator in Stats mode)

2. Inputting the data:

Press 8 ( =

8 ( =

9 ( =

11 ( =

14 ( =

3. Press AC ( SHIFT ( 1 ( 4 (or 5 on fx-85GT)

4. For the mean, press 2 ( = (you should get an answer of 10)

5. For standard deviation, repeat step 3 and then press 3 ( =

(you should get an answer of 2.28)

Example 2 – Frequency table

Calculate the mean and standard deviation of the following frequency table.

[pic]

1. Press MODE ( 2 ( 1 (this puts calculator in Stats mode)

2. Make sure you have a two column table. If you don’t, press

SHIFT ( MODE ( “down arrow” ( 3 ( 1

3. Press 10 ( =

12 ( =

13 ( =

16 ( =

4. Now use the arrow button to bring the cursor to the top of the 2nd column and press 12 ( =

5 ( =

9 ( =

7 ( =

5. Press AC ( SHIFT ( 1 ( 4 (or 5 on fx-85GT)

6. For the mean, press 2 ( = (you should get an answer of 12.394)

7. For standard deviation, repeat step 5 and then press 3 ( =

(you should get an answer of 2.228)

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download