JakerGamer
08.10.2020 •
Mathematics
No. 3: The owner of Maumee Ford-Mercury wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year. Car 1 2 3 4 5 6 7 8 Age (years) 9 7 11 12 8 7 8.0 11 Selling Price ($000) 8.1 6.0 3.6 4.0 5.0 10 7.6 8.0 a) If we want to estimate selling price on the basis of the age of the car, which variable is the dependent variable and which is the independent variable? Also estimate regression line b) Draw a scatter diagram. c) Determine the coefficient of correlation. d) Interpret these statistics. Does it surprise you that the relationship is inverse?
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