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Part 11:
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Scatter Diagrams |
Description
| A scatter diagram (or scatter graph) is a method of plotting the
values of two variables, using axes and plotting points just as you
did in line graphs, but without trying to join any of the points together
(this is because usually there are too many dots for any obvious line
to be drawn). The resulting distribution of dots or crosses can then
give us an idea whether the relationship between the two variables
is weak or strong. The technical word for this relationship is correlation, and the calculations and study of correlation form a significant part of many maths and statistics courses. |
