During 2001, the Campbell Foundation provided the following amounts in grants: Camden, N.J., $1,336,700; plant communities, $341,500; Dollars for Doers, $179, 600; other projects, $64,100.
a. Develop a pie chart to summarize these contributions.
b. Develop a bar chart to summarize these contributions
c. Why is it appropriate to construct a bar chart for these data instead of a histogram?