Examine the data above showing the electricity generation mix, for the Organisation for Economic Cooperation and Development (OECD) in 2015 and answer each of the following questions - Leaving Cert Geography - Question 7A - 2017

To create a suitable graph to illustrate the electricity generation mix for OECD in 2015, follow these steps:

1. Choose the Type of Graph: A Pie Chart is recommended to visually represent the proportions of different electricity sources.

2. Prepare the Data: The sources and their respective percentages are:

   • Hydro: 14%
   • Nuclear: 18%
   • Gas: 26%
   • Coal: 30%
   • Oil: 2%
   • Other: 10%

3. Draw the Pie Chart:

   • Start by drawing a circle to represent a complete pie.
   • Divide the circle into segments that reflect the percentage of each source.
   • Use a protractor to measure angles corresponding to the percentages:
     • Hydro: $14\% \times 360^\circ = 50.4^\circ$
     • Nuclear: $18\% \times 360^\circ = 64.8^\circ$
     • Gas: $26\% \times 360^\circ = 93.6^\circ$
     • Coal: $30\% \times 360^\circ = 108^\circ$
     • Oil: $2\% \times 360^\circ = 7.2^\circ$
     • Other: $10\% \times 360^\circ = 36^\circ$
   • Clearly label each segment with the source and its percentage.
   • Include a title at the top of the graph: "OECD Electricity Generation Mix 2015".

4. Final Touches: Ensure to check that all the segments add up to 100%. This provides a clear, visual representation of how electricity was generated in 2015.