The following data represent the speed of a car (in miles per hour) and its breaking distance (in feet) on dry asphalt. Speed 30 40 50 60 70 80 Breaking Distance 68.9 84.9 106.7 128.6 140.5 163.3 (a)...

The following data represent the speed of a car (in miles per hour) and its breaking distance (in feet) on dry asphalt.

(a) Draw a scatter plot.

(b) Find the least squares regresssion line. Round the slope and y-intercept to two decimals.


B(x) =

(c) Find the linear correlation coefficient. Round your answer to 4 decimals.


r =