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Statistics - Frequency Distribution

11. Consider the following data.

14 21 23 21 16
19 22 25 16 16
24 24 25 19 16
19 18 19 21 12
16 17 18 23 25
20 23 16 20 19
24 26 15 22 24
20 22 24 22 20
a. develop a frequency distribution using classes of 12-14, 15-17, 18-20, 21-23, and 24-26.
b. develop a relative frequency distribution and a percent frequency distribution using the classes in part (a).

15. A doctor's office staff studied the waiting times for patients who arrive at the office with a request for emergency service. The following data with waiting times in minutes were collected over a one month period.
2 5 10 12 4 4 5 17 11 8 9 8 12 21 6 8 7 13 18 3

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