a) Complete the grouped frequency distribution for the data. (Note that the class width is 6.) (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each dass with its midpoint. Number of miles Frequency 1.5 to 7.5 1 Frequency 7.5 to 13.5 8- 74 64 54 4 13.5 to 19.5 19.5 to 25.5 3 2- 1+ ? Number of miles