68. Traveling to work How long do people travel each day to get to work ? The following table gives the average travel times to work (in minutes ) for workers in each state and the District of Columbia who are at least 16 years old and don't work at home .

a) Make a histogram to display the time travel time data using intervals of within 2 minutes, starting at 14 minutes.

b) Describe the shape of the distribution. What is the most common interval of travel times?