VEL A personal trainer wants to look at the relationship between number of hours of exercise per week and resting heart rate of her clients. The data show a linear pattern with the summary statistics shown below: mean standard deviation 2 hours of exercise per week Î= 8.9 8 = 4.8 y = resting heart rate (beats per minute) V = 74.3 $y = 7.2 r=-0.88 Find the equation of the least-squares regression line for predicting resting heart rate from the hours of exercise per week. Round your entries to the nearest hundredth. lum +