Week 5 Lab.docx

# This chart is perceptually misleading in the fact

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The Pictograph below shows that object B is about nine times larger than object A. This chart is perceptually misleading in the fact that our eyes are drawn to the larger object and the area of the object is what we interpret since it is larger instead of looking at the height. (Boundless Statistics) As we see in the next graph that using different objects as well as the size of the objects in a pictograph can mislead. We can see this by how small the French fries are depicted in the graph compared to how large the hot dogs and hamburgers appear to make it seem that more hot dogs and hamburgers were sold and according to the label that the French fries actually sold more.
MISLEADING GRAPHS 6 (814 Math Blog, 2011) The pie chart below depicts a non-standard size shape. As you can see by the shape of the slices it can mislead since it distorts our perception of the values depicted and is hard to decipher the actual percentages of each slice. (Hickey, 2013) I chose to analyze the bar graph below: (Gelman, 2013)
MISLEADING GRAPHS 7 What is being claimed? The claim is 2012 was one of the warmest years on record. How good is the evidence? The evidence does not stand up to what the bar graph depicts. The Y axis does not start at one and begins with the number 53.3 and going up the scale in increments of 0.5 points. This can allow the data to be presented in a way to make the objects in the graph appear larger than what they really should be. What other information is relevant Since the Y axis does not start at one this gives us the perception that 2012 was the warmest year on record when in fact there is only a 0.98-degree difference from 1998 to 2012. If we also look at the X axis the years do not follow any particular corresponding trend and are not in the correct numerical order. Are relevant fallacies avoided? No, fallacies are not avoided. Misleading scales are shown in the graph as the Y-axis does not start at one. This is to mislead us to believe that one year is much warmer than the other years. Varying scales are used on the X-axis as it shows the years are not in numerical order which can lead to misleading visual impressions.

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