thegentlestoryk9556 thegentlestoryk9556 19-12-2022 Mathematics Answered The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed. Speed (MPH) Cars 30-39 5 40-49 18 50-59 50 60-69 17 70-79 10 a.54.5 mph b. 58.2 mph c. 55.4 mph d. 60.9 mph