The accompanying table lists x = weights (in hundreds of pounds) and y = highway fuel usage rates (in mi/gal) for a sample of domestic new cars.
x=29,35,28,44,25,34,30,33,28,24,
y=31,27,29,25,31,29,28,28,28,33
Find the value of the linear correlation, r. Round to the nearest thousandth.