How to Lie with Statistics

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When looking at a chart, a sharper increase in slope automatically assumes more progress in whatever the graph is showing to a reader. The extreme increase connotes more progress over time because it appears to be climbing more rapidly; depending on the scale, this may not be the case. Graph A begins higher up than graph B, which also contributes to why it would seem like it is making more progress. It seems as though it is not starting from the bottom of the graph and therefore graph A is positioned higher. I created the two charts and altered their positioning by changing the maximums and minimums. This changed the slope of the graphs, while keeping the data points the same. They are portraying the same information, but in different ways that can sway a reader or a particular argument one way or another. In graph A the maximum was .18 while the minimum was 0. For graph B the minimum was also 0 but the maximum was 1.0. The increased maximum from A to B is what altered the slope of the graph and also changes how the graph is read.