Source MWh (000)

Coal 127,959

Hydroelectric 21,455

Natural gas 114,270

Other gas 1,211

Nuclear 71,314

Petroleum coke and liquids 1,747

Renewable sources other than

hydroelectric and solar 22,814

Solar 5,502

Other 1,205

a. Construct a Pareto chart.

b. What percentage of power is derived from coal, nuclear, or natural gas?

c. Construct a pie chart.

d. For this table data, do you prefer using a Pareto chart or a pie chart? Why?