3. 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. 25 10 12 4 4 5 17 11 8 9 8 12 21 6 8 7 13 18 3 Use classes of 0-4, 5-9, 10-14, 15-19, and 20-24 in the following: a. Show the frequency distribution. b. Show the relative frequency distribution. c. Show the cumulative frequency distribution. d. Show the cumulative relative frequency distribution. e. What proportion of patients needing emergency service wait nine minutes or less?

The following table shows the results of 20 random Full Sail college students when asked the number of hours spent daily on their laptops. Complete a grouped frequency distribution for the data, with a class width of 4. Which frequency distribution, if any, is correct?

2. A coach gave her team a test on sit-ups completed in one minute. Using the data collected, the coach constructed the following frequency distribution: Scores 90-99 80-89 70-79 60-69 50-59 40-49 30-39 20-29 10-19 0-9 a. 9 12 17 13 10 7 3 1 What is the percentile score for a raw score of 38? Show your work. b.) The coach wants to take the top 20% of the team and train them for the World Sit-up Championships. What raw score cut-off would be used to choose the team? Show your work. Note: you can't have part of a person on the team.