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Part 12:
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Scatter Diagrams |
| If you think there is a relationship between two quantities then
you can draw a Scatter Diagram to see if it is worth while investigating. The variables are plotted along a pair of axes in the same way as you would for a line graph, the only difference being that you don't (in fact can't) join them up with a line. It is important to note, however, that the appearance of a relationship does not imply that one depends on another. It simply shows a connection. For all you know, both of the variables could be dependant on a third, unknown, one. |
