The speeds of five vehicles were measured (with radar) at the midpoint of a 0.5-mile section of roadway. The speeds for vehicles 1, 2, 3, 4, and 5...

The speeds of five vehicles were measured (with radar) at the midpoint of a 0.5-mile section

of roadway. The speeds for vehicles 1, 2, 3, 4, and 5 were 44, 42, 51, 49, and 46 mi/h,

respectively. Assuming all vehicles were traveling at constant speed over this roadway

section, calculate the time-mean and space-mean speeds.