What was the fare for this flight? 102.50
Based on data taken from airline fares and distances
flown, it is determined that the equation of the least-
squares regression line is ý = 102.50 +0.65, where
is the predicted fare and x is the distance, in miles,
One of the flights was 500 miles and its residual was
115.00
312.50
427,50
542.50