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

(a) Draw a stem-and-leaf plot for this dataset.

(b) Give two measures (and their values) for the center of this dataset. (c) Give two measures (and their values) for the variation in this dataset.