Geysers: The geyser Old Faithful in Yellowstone National Park alternates periods of eruption, which typically last from 1.5 to 4 minutes, with periods of dormancy, which are considerably longer. The following table presents the durations, in minutes, of 30 dormancy periods that occurred during a recent year. 90 66 103 61 89 71 59 88 89 90 88 86 91 116 97 101 90 82 61 92 86 91 82 84 61 90 83 101 66 66 Send data to Excel (a) Construct a frequency distribution using a class width of 7, and using 35 as the lower class limit for the first class. Dormancy Period Frequency X 5