Statistics How To

Scatter Plot on the TI-89 Calculator: How to in Easy Steps

TI-89 for statistics > Scatter Plot on the TI-89

Scatter Plot on the TI-89: Overview

A scatter plot is a type of graph that uses Cartesian coordinates on an x-y plane to display variables for two sets of data. This type of graph can help you visualize the distribution of data and make predictions about your data. Making a scatter plot is very easy on the TI-89 graphing calculator and involves three phases: Accessing the data matrix editor, inputting your X and Y values and then graphing the data.

scatter plot on the ti-89

TI-89

Scatter Plot on the TI-89: Steps:

Sample problem: make a scatter plot for the following data: (1,6), (2,8), (3,9), (4,11), and (5,14).

Accessing the Data Matrix Editor
Step 1: Press APPS
then scroll to the “Data/Matrix” editor, press
ENTER and then select “new.”

Step 2: Scroll down to “Variable” and type in desired name. For example, type “scatterone.” Note: you don’t have to press the ALPHA key to access the alpha keypad. Just type!

Step 3: Press ENTER ENTER

Inputting X and Y Values
Step 1: Enter your X values under the “c1” column. Press ENTER after each entry.
For our list, you would need to press:
1 ENTER
2 ENTER
3 ENTER
4 ENTER
5 ENTER

Step 2: Enter your Y values under the “c2” column (use the arrow keys to scroll to the top of the column). Press ENTER after each entry.
For our list, you would need to press:
6 ENTER
8 ENTER
9 ENTER
11 ENTER
14 ENTER

Graphing the Data
Step 1: Press f2
for Plot Setup.

Step 2: Press f1

Step 3: Select “scatter” next to “plot type”

Step 4: Select “box” next to “mark type”

Step 5: Scroll to the “x” box and then press ALPHA ) 1 to enter “c1″.

Step 6: Scroll to the “y” box and then press ALPHA ) 2 to enter “c2″.

Step 7: Press ENTER ENTER

Step 8: Press f3 to view your scatter plot.

Step 9: Press f2 and then press 9 so that the scatter plot will be drawn in the correct window for the data.

That’s it!

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5 thoughts on “Scatter Plot on the TI-89 Calculator: How to in Easy Steps

  1. Andale

    The Window variables domain error occurs when the minimum value for x or y is larger than the maximum value…check your inputs carefully.

    Regards,
    Stephanie