The National Highway Traffic Safety Administration collects information on fatal accidents that occur on roads in the

Question:

The National Highway Traffic Safety Administration collects information on fatal accidents that occur on roads in the United States. Following are the number of fatal motorcycle accidents that occurred in each of South Carolina€™s 46 counties during the year 2009 (www-fars.nhtsa.dot.gov).

a. Construct a frequency distribution table using the classes 1€“10, 11€“20, 21€“30, 31€“40, 41€“50, and 51€“60.
b. Calculate the relative frequency and percentage for each class.
c. Construct a histogram and a polygon for the relative frequency distribution of part b.
d. What percentage of the counties had between 21 and 40 fatal motorcycle accidents during 2009?

Distribution
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