Statistics
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1. 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.
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?
b. Draw a scatter diagram.
c. Determine the coefficient of correlation.
d. Determine the coefficient of determination.
e. Interpret these statistical measures. Does it surprise you that the relationship is inverse?
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