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.†
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 |
(b) Make a frequency table with seven classes showing limits, class boundaries, midpoints, frequencies, and relative frequencies. (Round your relative frequencies to two decimal places.)
Class Limits | Class Boundaries | Midpoint | Frequency | Relative Frequency |
Cumulative Frequency |
− − − − − − − |
− − − − − − − |
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