Highway Safety The maximum speed limits in miles per hour for interstate highways for the fifty states are given below. Construct a frequency polygon of the data. 70, 65, 75, 70, 70, 75, 65, 65, 70, 70, 55, 75, 65, 65, 65, 70, 65, 70, 65, 65, 65, 70, 70, 70, 70, 65, 75, 75, 65, 65, 75, 65, 70, 70, 65, 75, 65, 65, 65, 65, 75, 65, 70, 75, 65, 65, 70, 70, 65, 75
