http://www.ck12.org Chapter 15. Concepts of Statistics
TABLE15.15:(continued)
- Use your calculator to perform a linear regression that models the data. What is the regression equation? What
is the correlation coefficient? - Use the equation from #10 to predict the Quiz 2 score for a student with a Quiz 1 score of 19. Does this prediction
seem reasonable given the data? Why or why not? - What conclusions can you make about this data?
- Explain in your own words the difference between causation and correlation.
- Explain in your own words what the correlation coefficient measures.
- Explain why a larger sample size will cause a more accurate correlation coefficient.