. The following data (in thousands of dollars) represent the net annual income for a sample of taxpayers: 47, 55, 18, 24, 27, 41, 50, 38, 33, 29, 15, 77, 64, 22, 19, 35, 39, 41, 67, 55, 121, 77, 80, 34, 41, 48, 60, 30, 22, 28, 84, 55, 26, 105, 62, 30, 17, 23, 31, 28, 56, 64, 88, 104, 115, 39, 25, 18, 21, 30, 57, 40, 38, 29, 19, 46, 40, 49, 72, 70, 37, 39, 18, 22, 29, 52, 94, 86, 23, 36 (a) Graph this data set in a frequency histogram having 5 class intervals. (b) Graph this data set in a frequency histogram having 10 class intervals. (c) Which histogram do you think is more informative? Why? d) Construct a complete frequency distribution table of the above data.