Saturday, 16 March 2013

Data Handling: Choice of Graphs by Ray Chua!

Ace Learning weather map link:

Pictograms, Bar Graphs, Pie Charts and Line Graphs

(Note: You need to be logged into Ace Learning to access this link.)

Among the 4 graphs (Line Graph, Bar Graph, Pictograms, Pie Charts), which one is NOT appropriate to represent the information?

Answer: The Pie Chart is not appropriate to represent the information.



Reason: The way the Pie Chart represents the information makes it difficult for the viewer to find out which weather is the most common in the region as the viewer has to look at the Legend before looking at the information displayed in order understand the information.

Why are the rest of the Graphs appropriate to represent the information?

Answer: The Line Graph, Bar Graph and Pictogram displays the information already labeled, thus the viewer can easily tell which weather is the most common in the region without having to consult a legend before hand.

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