A newly-designed highway sign is being examined. 27 drivers, of various ages, were tested to see at what maximum distance (in feet) each driver could clearly read the sign. Each driver's age was also...

A newly-designed highway sign is being examined. 27 drivers, of various ages, were tested to see at what maximum distance (in feet) each driver could clearly read the sign. Each driver's age was also recorded. Some summary statistics are shown below:

The correlation between age and distance is -0.796. Caleulate the intercept of the least-squares regression line for predicting distance from age.

(a) 575

(b) 425

(c) 500

(d) 350

(e) 275