a. Obtain the linear correlation coefficient.

b. Interpret the value of r in terms of the linear relationship between the two variables.

c. Discuss the graphical interpretation of the value of r.

d. Obtain the value of the coefficient of determination by squaring r.

The following are the age (in years) and price (in hundreds of dollars) data for a certain type of car. A scatterplot of the data is Ay given to the right. 500- 400-0 0 DO 300- 8 Age (x) 7 7 7 3 3 5 5 5 1 5 X 2007 Price (y) 273 257 278 404 362 298 339 313 408 304 0 2 4 6 8 10 a. r= (Round to three decimal places as needed.)