A busy airport collected the data below on the number of passengers by airline for a particular month. Suppose the airport manager it interested in analyzing these data. 31,030 24,988 260,993 96,610 605,948 22,429 17,640 231,241 46,290 88,811 191,451 16,516 224,089 2,622 134,914 90,017 72,888 77,324 133,359 1,699 531,020 63,605 589,825 46,569 186,047 626,214 431,494 553,879 34,790 47,561 499,689 51,486 70,311 a. Using the 2* z n guideline, what is the minimum number of classes that should be used to display the data in a grouped data frequency distribution? k=classes