Problem

The approximate sales of Lexus automobiles are shown in the table.† YearVehicle Sold200...

The approximate sales of Lexus automobiles are shown in the table.

Year

Vehicle Sold

2000

207,000

2001

229,000

2002

236,000

2003

264,000

2004

289,000

2005

300,000

(a) Let x = 0 correspond to 2000 and use linear regression to find a model for this data (in which the number of vehicles sold is in thousands). Round the coefficients to four decimal places.


(b) Use your model to estimate sales in 2007.


(c) According to your model, at what rate are sales increasing?

Based on data from Autodata Corporation.

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Solutions For Problems in Chapter 2