At Capitan High School, we use TI-84 Silver Edition graphing calculators in our math classes. These have a lot of built in statistical functions that make our job much easier. All the instructions below were done specifically for a TI-84 graphing calculator, but the instructions will also work for a TI-82 or TI-83. If you are using a TI-89 please check with your users manual.
More recently, we have upgraded to the TI-Nspire graphing calculators and even have two Nspire color calculators.
I strongly suggest that you visit the education.ti.com site for detailed tutorials on how to use your calculator fully.
The following steps, in order, are required to use a graphing calculator in solving problems in statistics:
For the instructions below, (2nd) means to use the second function button (top left, just below the Y= button) followed by a second function, listed in blue above one of the regular buttons on your TI-84 graphing calculator.
Before starting, you need to be sure to clear any previous data out of your calculuator. There are two choices for how to do this. I usually just clear the whole memory (RAM), but you can also clear one list at a time.
|To clear everything
||To clear only one list
1: All RAM
|MEM is above
the + key
pick list you want
|LIST is above
the STAT key
The TI graphing calculuators use LIST to enter data for use in statistics and other applications. Once the data is in a list, it can be graphed or used to do calculuations.
|To enter data
Enter data into one of the lists
|use ENTER after you add
each number to your list
For use in all examples on this page, practice by entering data into List 1 (L1). Use the following data: 5, 9, 8, 4, 2, 7, 6, 1, 9, 3, 5
Use the up and down arrows to move to the last number in your list. If you did the example correctly, at the bottom of the screen it will say:
This means that the eleventh number in list L1 is 5.
This section explains how to use the data you have entered into a list to do some of the standard calculuations in statistics. To follow along with the examples, you should have done steps 1 and 2, entering the sample data found in step 2.
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