Problem 1 The owner of a second-hand car dealership 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. Age (years) Price (thousand $) 8.1 7 11 12 8. 7 8. 11 10 12 6. 2.8 4 10 7.6 8 8.7 6 8.6 | 10.5 a. Draw a scatter diagram and comment the relation between the age of the car and its selling price. b. Determine the Pearson correlation coefficient and the coefficient of determination and interpret it.

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