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3 5 1. The following table shows for all fifty U.S. states the percentage of college students who are enrolled in private institutions in September 2019. The lowest percentage is 4% (Alaska) and the highest is 56% (Rhode Island) 14 4 34 14 20 22 38 19 23 19 23 24 27 31 24 10 22 18 30 17 54 20 22 7 34 9 24 14 42 19 9 43 19 12 29 14 16 43 56 18 21 33 14 25 45 25 20 20 15 31 (a) Construct a relative frequency distribution table for this dataset and draw the corresponding relative frequency histogram. Use equal-width classes and begin with the class [0,10). Would you describe the histogram as symmetric or skewed? (b) Find the proportion of states with an enrollment percentage of at most 20%, between 21% and 29% (inclusive), and at least 30% 2. The following U.S. cities had a population of over 3 million in September 2019. The table provides for each city the extra travel time in hours (due to traffic congestion) for commute travel per traveler per year. Los Angeles, CA 98 San Francisco, CA 75 Washington, DC 66 Atlanta, GA 64 Houston, TX 65 Dallas, TX 61 Chicago, IL 55 Detroit, MI 58 Miami, FL 52 Boston, MA 57 New York, NY 54 Phoenix, AZ 53 Philadelphia, PA 44