3. (a) Make a frequency distribution and a histogram for the following data, with 5 classes: 83 117 88 112 96 76 122 107 97 108 89 121 99 98 110 92 113 101 97 115 114 104 125 113 120 How would you describe the shape of this distribution? (b) Make the frequency distribution and histogram for the same data with 6 classes. Is the shape different? 4. Make a stem-and-leaf diagram for the following data: 92 59 84 61 78 56 48 66 67 72 88 79 90 49 56 51 74 63 91 82 How would you describe the shape of this distribution? 5. Make back-to-back stem-and-leaf diagrams for the following two data samples: Sample 1: 35 19 20 39 33 42 35 17 44 27 31 41 47 39 32 28 52 49 36 22 Sample 2: 34 19 47 28 34 55 27 41 30 31 17 38 48 26 36 24 39 42 18 41 How would you compare the two samples?