When the levels of an independent variable are ordered along a single dimension/scale,the resulting data would most effectively be displayed (i.e.,in a way that could be most rapidly understood by the viewer while still being appropriate)using a:

Question

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A line graph is most effective for displaying data that are ordered along a single dimension or scale, as it clearly shows trends and changes over that dimension, making it easier for the viewer to understand the progression or relationship between the levels of the independent variable.

When the Levels of an Independent Variable Are Ordered Along