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5) The following back-to-back stem-and-leaf plot represent the results of two random samples obtained by Millie Gramm. The first random sample consisted of weights of carry-on luggage used by business travelers at an airport. The second random sample consisted of weights of carry-on luggage used by non- business travelers at the same airport. Business Non-Business 69 89 O 799 2358 NH 44468 11347889 23699 3 022246 178 4 24 5 a) What value occurs the most often for the business travelers? b) What value occurs the most often for the non-business travelers? c) Which group is more symmetrical