The following table provides the sources of electricity used by households in a city.
Source of Electricity (1) Percentage
Coal 39%
Hydro and Renewables 13%
Natural Gas 27%
Nuclear Pwer 19%
Other 2%
(a) Construct a pie chart.
(b) What percentage of power is derived from coal, nuclear power, or natural
gas?
(c) For above data, do you prefer using a pareto chart or a pie chart? Why?
(a) Pie charts are used in data handling and are circular charts divided up into segments which each represent a value.
(b) The percentage of power derived from coal, nuclear power, or natural gas is: 39 + 19 + 27 = 85%.
(c) For above data it's better to use a pie chart.
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