Skills Jan 2013 paper:

Skills Jan 2013 paper:

1. PIE CHARTS:

   • sizes of circle can be made proportional to the amount of data they represent.
   • changes shown along transect= showing linear change in vegetation cover.
   • do not show exact values.
   • many are needed to show change over time= confusing to view.

2. KITE DIAGRAMS:

   • visually effective + can easily see changes between results over time= easy comparisons of vegetation types.
   • clear and easy to interpret data off.
   • visually subjective as scale can affect visual affect of diagram.
   • data is discrete and may be individual. However lines make it appear continual.

3. OTHER METHODS, Q5B:

   • RADIAL DIAGRAMS:
     • Can compare multiple sets of data as lots can be placed on diagram at the same time, individual variables in diagram can be compared.
     • Difficult to spot anomalies and to create a suitable scale.
   • SCATTER GRAPH:
     • Shows correlation, continuous with no limit to how many scatter dots can be included.
     • Takes time and accuracy to construct and can be difficult to draw a line of best fit.
   • BAR CHARTS:
     • Quick, simple, easy to construct. Comparative and visually strong.
     • Only used with discrete data.
   • LINE GRAPHS:
     • Can compare data and see more than two variables at a time, presents continuous data.
     • Not visually appealing and needs smaller range of data to ensure it is clear.