The data below is the number of states visited by students in a community college Chemistry class. Construct a frequency distribution having 5 classes for this data. 3, 7, 15, 2, 10, 5, 5, 30, 6, 10, 30, 20, 15, 21, 36, 36, 2, 10, 9, 31, 8, 34, 7, 4, 20, 5, 20, 4, 38, 13