Auto Accidents: Age Data for this problem are based on information taken from The Wall Street Journal. Let x be the age in years of a licensed automobile driver.

Let y be the percentage of all fatal accidents (for a given age) due to speeding. For example, the first data pair indicates that 36% of all fatal accidents involving 17-year-olds are due to speeding.

x 17 27 37 47 57 67 77 y 36 25 20 12 10 7 5 Complete parts

(a) through (e), given Sx 5 329, Sy 5115, Sx2 518,263, Sy2 5 2639, Sxy 5 4015, and r < 20.959.

(f) Predict the percentage of all fatal accidents due to speeding for 25-year-olds.

AppendixLO1