City government has collected the following data on annual sales tax collections and new car registrations over the past 7 years:
Years 1 2 3 4 5 6
Annual Sales Tax Collections 1.0 1.4 1.9 2.0 2.1 1.8
(In Millions)
New Car Registrations 10 12 15 16 14 20
(In Thousands)
Determine the least squares regression equation.
What does a and b represent in the context this problem?