Each year Forbes reports on the value of all teams in the National Football League. Although England's soccer team, Manchester United, is the most valuable team in the world ($1.8 billion), the NFL now has 15 teams worth at least $1 billion. For 2011, Forbes reports that the Dallas Cowboys are the most valuable team in the NFL, worth $1.85 billion. The current values (in $ millions) of all 32 NFL teams, as well as the percentage changes in values from 2010 to 2011, debt-to-value ratios, annual revenues, and operating incomes are listed in the table below.
a. Use a graph to describe the distribution of current values for the 32 NFL teams.
b. Use a graph to describe the distribution of the 1-year change in current value for the 32 NFL teams.
c. Use a graph to describe the distribution of debt-to-value ratios for the 32 NFL teams.
d. Use a graph to describe the distribution of the annual revenues for the 32 NFL teams.
e. Use a graph to describe the distribution of operating incomes for the 32 NFL teams.
f. Compare and contrast the graphs, parts a-e.

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