Friday, 22 March 2013

Data Handling: Choice of Graphs by Vanshiqa

  • Can you identify the one that is not appropriate? I think the pie chart is inappropriate.
  • Why do you think it's not appropriate? The pie chart is not appropriate as it not accurate because it does not show the exact number places which have a specific weather.
  • What makes you think the 3 remaining graphs are appropriate? The other 3 graphs specify the number of places having the specific weather. Therefore, they are accurate.

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?