Homework SourseThe geyser Old Faithful in Yellowstone National Park alterna
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 the period January 21-25 2010.
88 116 96 82 95 83 89 96 83
91 101 82 89 97 103 71 91 83
105 91 71 80 71 82 66 91 71
101 93 59
Construct a frequency distribution using a class width of 5, and using 55 and 59 as the limits for the first class
Dormancy Period Frequency
55-59
60-64
65-69
70-74
75-79
80-84
85-89
90-94
95-99
100-104
105-109
110-114
115-119
Any ideas on frequency?
Solution
Dormancy Period Frequency
55-59 ----------------------1
60-64--------------------0
65-69 ----------------------0
70-74 ----------------------4
75-79 ----------------------0
80-84 ----------------------7
85-89 ----------------------3
90-94 ----------------------5
95-99 ----------------------4
100-104 ----------------------3
105-109 ----------------------1
110-114 ----------------------0
115-119 ----------------------1+
