Correlation and Regression

Algebra 2 Project: Correlation and Regression

Purpose: Associations between variables often can be found in data gathered in observational studies. In this project, you will

choose variables of interest to you, plan a strategy for gathering appropriate data for those variables, and then examine the data

for relationships.

Directions:
1. To complete this project, you may work alone or in a pair of 2 students. If 2 people complete the project together they must

be from the same class period.

2. Choose a topic of interest. Topics must be unique and preferably from another class you are currently taking. Other

possible topics can come from sports themes, populations, nature, etc. Within the topic choose two variables that you will study to

determine the strength and direction of their association. Topics must be approved.

3. Develop a plan for gathering data. You can collect your data through research methods (internet, text books, etc.) or if

applicable you can conduct a survey. You must reference where you got the data from if you use existing data.

4. Gather Data. You need at least 20 pairs of data. If more is available, use it! The more data you have the more accurate

your results will be.

5. Make a table and scatter plot of the data and calculate appropriate correlations. When making a table, try to make a

HORIZONTAL table to save space on your report document. Try different models to make sure you chose the most appropriate model for

your data. Try at least 3 models and report the R2 correlation values.

6. Write a report of your study. See Rubric for requirements.

General Written Report Guidelines:
⇨Your report must be typed in Times New Roman 12-point font, single line spacing, with _ double spaces between paragraphs.
⇨Your report should be roughly 3-4 pages in length with one-inch margins (About 1 page of
actual text, the remainder will likely be graphs and tables)
⇨Your report must consist of the following three sections:
Part I: Procedure, Part II: Calculations and Analysis, and Part III: Conclusion

7. Be prepared to present your findings to the class in a presentation. Each class will be making their own rubric for the

presentations and what you expect.

8. Be sure to make clear in your report what the variables, correlation coefficients, and other statistics represent.