The histogram shows information about how 550 people travel to work.
40+ 35 30- β‘ 25 Frequency density 20 15 10 5 Distance (miles) 0+ 0 5 10 15 20 25 30 35 40 45 50 55 60 a) How many people travel more than 30 miles to work? b) 205 of the 550 people travel further than Sam. Estimate how far Sam travels.