A Frequency Distribution Example
Table III shows the unsorted raw data that will be used to make a frequency table. Note that the low and high results are highlighted. These data are continuous; however, the testing equipment rounds the data off to the nearest whole number of milligrams.
Table III
Concentration of Serum Glucose (mg/dL) in 130 Hospital Employees
| 100 | 83 | 80 | 114 | 100 |
| 80 | 85 | 81 | 101 | 80 |
| 95 | 108 | 79 | 81 | 97 |
| 77 | 84 | 88 | 78 | 86 |
| 81 | 77 | 98 | 85 | 92 |
| 105 | 85 | 108 | 90 | 89 |
| 84 | 94 | 84 | 81 | 82 |
| 78 | 84 | 82 | 98 | 86 |
| 87 | 74 | 79 | 104 | 89 |
| 91 | 85 | 72 | 92 | 90 |
| 93 | 87 | 90 | 99 | 96 |
| 110 | 107 | 97 | 84 | 76 |
| 83 | 80 | 101 | 75 | 84 |
| 76 | 73 | 86 | 71 | 84 |
| 70 | 79 | 91 | 86 | 86 |
| 91 | 87 | 96 | 96 | 97 |
| 106 | 104 | 65 | 81 | 103 |
| 83 | 90 | 70 | 80 | 80 |
| 75 | 82 | 83 | 76 | 81 |
| 87 | 84 | 86 | 93 | 86 |
| 103 | 76 | 112 | 102 | 93 |
| 89 | 67 | 78 | 84 | 82 |
| 91 | 86 | 82 | 82 | 87 |
| 89 | 95 | 90 | 73 | 103 |
| 75 | 113 | 93 | 86 | 77 |
| 95 | 94 | 99 | 87 | 92 |