The National Oceanic and Atmospheric Administration reports the following record high temperatures (degrees Fahrenheit) in 50 U.S. cities. These data are also provided in the file XR02056.

a. Construct a stem-and-leaf display for these data.
b. Construct a frequency distribution.
c. Determine the interval width and the class mark for each of the classes in your frequency distribution.
d. Based on the frequency distribution obtained in part (b), draw a histogram and a relative frequency polygon to describe the data.

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City Temperature Mobile, AL Juneau, AK Phoenix, AZ Little Rock, AR Los Angeles, CA Denver, CO Hartford, CT Wilmington, DE Miami, FL Atlanta, GA Honolulu, HiI Boise, ID Chicago, IL Indianapolis, IN Des Moines, IA Wichita, KS Louisville, KY New Orleans, LA Portland, ME Baltimore, MD Boston, MA 105 90 122 112 110 105 102 102 2 105 95 104 104 108 113 106 102 103 105 102 City Temperatu Detroit, MI Duluth, MN Jackson, MS St. Louis, MO Great Falls, MT Omaha, NE Reno, NV Concord, NH Atlantic City, NJ Albuquerque, NM Buffalo, NY Charlotte, NC Bismarck, ND Cleveland, OH Oklahoma City, OK Portland, OR Pittsburgh, PA Providence, RI Columbia, SC Sioux Falls, SD Nashville, TN Houston, TX Salt Lake City, UT Burlington, VT Norfolk, VA Seattle, WA Charleston, wW Milwaukee, WI Cheyenne, WY 104 97 107 107 106 114 108 102 106 107 104 104 110 107 103 104 107 110 107 109 107 101 104 100 104 103 100