Manipulating Data

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Although I had some difficulty trying to manipulate the years (so that they’d show on the scale) I am demonstrating here, how by simply changing the starting or end point on the range, you can significantly change the data that you are looking at. In other words, for those people who aren’t technology saavy or don’t necessarily understand graphs, it would be very easy to persuade them to think one way or another based on how we manipulate the graph data. This method is effective in having us question what we are looking at instead of accepting a set of information because it was written by people who are knowledgeable in the field.

The second graph I am showing is displaying a significant and steady increase, for example, whereas my first graph is showing a very insignificant increase.

GRAPH # 1:

and Graph # 2:

How to Lie with Statistics

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Both of the charts have the same data, but look very different. There is a difference in the size of the lines, making it seem that each chart represents different data. In reality the charts only have a difference in the y axis. In chart one the percentage goes from 40% to 80% and in chart two the percentage goes from 10% to 100%