The following data represent y = the number of passenger cars retired from service and x =
Question:
a. Determine the least-squares regression line and interpret its slope.
b. Estimate, for a year in which x = 7.0 million new passenger cars are registered, the number of cars that will be retired from service.
c. Estimate, for a year in which 9.0 million new passenger cars are registered, the number of cars that will be retired from service.
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