28. Highway Repair The following data represent the num- her of potholes on 50 randomly selected 1-mile stretches of highway in the city of Chicago. 2 7 4 7 2 7
2 2 2 3 4 3
1 2 3 2 1 4
2 2 5 2 3 4
4 1 7 10 3 5
4 3 3 2 2
1 6 5 7 9
2 2 2 1 5
3 5 1 3 5
(a) Construct a frequency distribution of the data. (b) Construct a relative frequency distribution of the data. (c) What percentage of the 1-mile stretches of highway had seven or more potholes? (d) What percentage of the l-mile stretches of highway had two or fewer potholes? (e) Construct a frequency histogram of the data. (f) Construct a relative frequency histogram of the data. (g) Describe the shape of the distribution.