Calculate and report the correlation coefficient, r. Does the significant linear relationship exist? If a linear correlation exist as a positive or negative explain what this means. 

Row Vehicle weight MPG var3 8 CO 5500 27.2 9 4500 16.8 10 4500 30.3 11 4250 30.3 12 4250 47.5 13 4250 30.2 14 4250 46.3 15 4250 30.8 16 4250 46.5 17 3875 33.8 18 3875 50.5 19 3875 32.1 20 3875 49.1 21 6500 27.7 22 6000 32.6 23 6000 20.1 24 6500 20.3 25 6500 31.4 26 5500 15.6 27 5500 22.8 28 4750 24.1 29 4750 33.2 30 4750 24.7 31