The file BBCost2012 contains the total cost (in $) for four tickets, two beers, four soft drinks, four hot dogs, two game programs, two baseball caps, and parking for one vehicle at each of the 30 Major League Baseball (MLB) parks during the 2012 season. (Data extracted from fancostexperience.com.)

a. Visually evaluate the total cost at each MLB park by constructing a bullet graph. For the purposes of comparison, consider a total cost (in $) below $180 as inexpensive, between $180 and $240 as typical, and above $240 as expensive.

b. Compare the bullet graph constructed in (a) with the stem-andleaf display constructed in Problem 2.36 on page 63 for the same data.

c. Which display best visualizes the distribution of costs? Why?

d. Name something that the bullet graph reveals about the data that the stem-and-leaf display does not. How could that be used as the basis for future analysis of total costs at MLB parks?