There might be good reasons for displaying data on a truncated y-axis (if you are looking at relative differences rather than total magnitude - e.g. you wouldn't display changes in temp yr-to-yr using a scale with 0 deg K).
The point is that students need to pay attention to the y-axis and
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The point is that students need to pay attention to the y-axis and
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Comments
The more subtle point is that in any bar graph, the width of the bar is also important. Not only should it be consistent bar-to-bar (it is not in the graph above), but it can't be too fat. Because the human eye will naturally compare area-to-area
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And yes, sometimes tables are better than graphs.
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