Wednesday, 20 March 2013

Data Handling: Choice of Graphs by Ravern Koh

Among the 4 graphs (Line Graph, Bar Graphs, Pictograms, Pie Charts), one of the graphs that is NOT appropriate to represent the information?
    • Can you identify the one that is not appropriate? Yes, I can.
    • Why do you think it's not appropriate? I feel that this graph is inappropriate as it does not show the quantity of places that have that specific weather.
    • What makes you think the 3 remaining graphs are appropriate? The 3 remaining graphs all show the number of countries that have that weather type.

1 comment:

  1. Pie chart shows the 'proportion', which tells us how often each type of weather occurs by the size of each pie. So, it's still appropriate.

    There are situations when we do not require the exact figures, but just need to tell the 'size' of occurrence at a glance. That's where pie chart is useful.

    So, which graph is inappropriate, and why?