1. Scatter Diagrams Summer Cadre 2006

2. What is a Scatter Diagram? A Scatter Diagram is used to confirm a relationship between two variables. A Scatter Diagram is also used to test for possible cause and effect.

3. Gathering Data Gather your data for the two variables you are going to compare. For example, print your students’ attendance records and FCAT levels.

4. Enter Data in a Spreadsheet Open a new worksheet in Excel Enter your data

5. Making the Scatter Diagram Highlight the data ‘To highlight, Click cell B2 and then hold the left mouse button down as you drag the cursor down to last cell’ B2 Last Cell

6. Open the Chart Wizard Click the Chart Wizard

7. Step 1 of the Chart Wizard Click the type ‘XY (Scatter)’ Click ‘Next’

8. Step 2 of the Chart Wizard Click ‘Next’

9. Step 3 of the Chart Wizard In the ‘Titles’ tab - label your graph Click on the ‘Gridlines’ tab

10. Step 3 of the Chart Wizard, con’t. In the ‘Gridlines’ tab – uncheck all the boxes (this is OPTIONAL) Click on the ‘Legend’ tab

11. Step 3 of the Chart Wizard, con’t. In the ‘Legend’ tab – uncheck ‘Show Legend’ Click ‘Next’

12. Step 4 of the Chart Wizard Click in the radio button next to ‘As new sheet’. Click ‘Finish’

13. Scatter Diagram Now let’s add the trendline…

14. Adding the Trendline Click on ‘Chart’ in the toolbar Click on ‘Add Trendline…’

15. Adding the Trendline, con’t. Click ‘OK’

16. Formatting the ‘Y’ Axis Double click on any number in the ‘Y’ Axis Enter your maximum value for your ‘Y’ Axis (ex: Attendance = 180) Click ‘OK’

17. Formatting the ‘X’ Axis Double click on any number in the ‘X’ Axis Click checkmarks to uncheck everything Enter your maximum value for your ‘X’ Axis (ex: FCAT Level = 5) Enter the minimum value for your ‘X’ Axis (ex: FCAT Level = 1) Click ‘OK’

18. Here is your Scatter Diagram