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On 01/12/2012 01:48 PM, Folkerts, Timothy J wrote:
Students (especially at high school or lower college levels) often have
a hard time deciding which variable to plot along the bottom of a graph.
A very simple memory aid suddenly occurred to me today -- "looking up"
the answer on the graph.
There is a fundamental reason why it is hard for students
(or anybody else) to decide which variable to plot in which
direction. The reason is: In most cases, it doesn't matter!