________________________________________________________
Linear Regression - Line of Best Fit Quick Check
---------------------------------------------------------------------------------------------------------
1. The city of Harmonville created a scatter plot to illustrate the number of robberies that have been reported there over the past several years. Use linear regression to predict the number of reported robberies that occurred during 2006.
Answer:
B. 1,200
----------------------------------------------------------------------------------------------------------
2. Find the equation of the line of best fit for the points (−4, 10), (−1, 5), (2, −1), (3, −6), and (5, −7).
Answer:
A. y = -2x + 2
----------------------------------------------------------------------------------------------------------
3. What is the significance of a correlation coefficient of -0.97?
Answer:
A. The points all lie very close to the line of best fir, and the line is decreasing.
----------------------------------------------------------------------------------------------------------
These are all 100% correct. You're Welcome!
________________________________________________________