1.3. Measures of Center http://www.ck12.org
Technology Note: Use the TI-83/84, and Mean it!
As was already mentioned, once you understand how to calculate a mean, and unless you need practice with your
arithmetic skills, you rarely calculate them by hand. Here is how to calculate a mean with the TI-83/4 family of
graphing calculators.
Step 1: Entering the data
On the home screen, press[2nd] [ { ], then enter the data separated by commas. When you have entered all the data,
press[2nd] [ } ] [sto] [2nd] [L1] [enter]. You will see the screen on the left below:
1 , 3 , 4 , 3 , 1 , 2 , 2 , 2 , 1 , 2 , 2 , 3 , 4 , 5 , 1 , 2 , 3 , 2 , 1 , 2 , 3 , 6
Step 2: Computing the mean