7.2 (20.20) - 20 points: A transportation engineering study was conducted to determine the proper design of bike lanes. Data were gathered on bike lane widths and average distance between

bikes and passing cars. The data from nine streets are (a) Plot these data sets. (b) Fit a straight line to these data with linear regression. Add this line to the plot. ©) If the minimum safe average distance between bikes and passing cars is considered to be2 m, determine the corresponding minimum lane width.