Researchers wish to study fuel consumption rates based on speed. The data from 10 cars are below. Speed Miles/Gallon 15 14 23 17 30 20 35 24 42 26 45 23 50 18 54 15 60 11 65 10 It can be shown that for these data: X 41.9, y = 17.8, (xx)2=2352.9. (y,y)2=267.6, (x1)( 5314 that for these data: 17.8, (xx)2 2352.9. (y,y)2267.6. (x - x) (y, - 7 ) -270.2. It can be shown that for these data: X-41.9, 7-17.8. (xx)2=2352.9. (y, y ) 267.6. Calculate the sample correlation coefficient. .12 -.12 -.36 -34 0.34