The following data represent trunk circumferences (in mm) for a random sample of 60 four-year-old apple trees at East Malling Agriculture Research Station in England. â⬠108 99 106 102 115 120 120 117 122 142 106 111 119 109 125 108 116 105 117 123 103 114 101 99 112 120 108 91 115 109 114 105 99 122 106 113 114 75 96 124 91 102 108 110 83 90 69 117 84 142 122 113 105 112 117 122 129 100 138 117 (a) Make a stem-and-leaf display of the age distribution. (Use the tens digit as the stem and the ones digit as the leaf. Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values. )
