The following table represents the estimated green power sales by renewable energy source in 2008:
Source
|
Percentage (%)
|
Geothermal
|
2.8
|
Hydro
|
11.3
|
Landfill mass and biomass
|
28.1
|
Solar
|
0.2
|
Unreported
|
2.5
|
Wind
|
55.1
|
a. Construct a bar chart, a pie chart, and a Pareto chart
b. What conclusions can you reach about the sources of green power?