Thursday, November 18, 2010

Simple Tables to Graphs
















I chose to use the high school GPA of incoming freshmen to RWU. For information like this, there are clearly certain visuals that work much better than others. Obviously, the simple table displayed the information very easily and effectively. The pie chart also did a very nice job displaying percentages for each GPA group. However, the bar graph did a very poor job displaying what I wanted it to, but I included it to show how much better the pie chart was. I'm not sure if it's because I didn't differentiate my variables correctly, but it used the GPA and the percentage as 2 comparing numbers instead of using them together.
Using excel wasn't too difficult for me since I am somewhat familiar with it, but I did run into some problems. Mostly just trying to get the data to read as a wanted. I'm not sure why, but I had to make the pie chart first with only one number for each percentage (for example 2.0 and 2.5 instead of reading 2.0 - 2.49), then go in and change the actual words in the pie chart to its respective piece.

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