Auto Accidents: Age Let x be the age of a licensed driver in years. Let y be the percentage of all fatal accidents (for a given age) due to failure to yield the right-of-way. For example, the fi rst data pair states that 5% of all fatal accidents of 37-year-olds are due to failure to yield the right-of-way. The Wall Street Journal article referenced in Problem 11 reported the following data:

x 37 47 57 67 77 87 y 5 8 10 16 30 43 Complete parts

(a) through (e), given x 5 372, y 5 112, x2 5 24,814, y2 5 3194, xy 5 8254, and r < 0.943.

(f) Predict the percentage of all fatal accidents due to failing to yield the right-of-way for 70-year-olds.