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Chapter 5: Bivariate Data
Figure 5-2:
Perfect positive linear association
Figure 5-3
shows variables that are negatively related, since larger values of
the dependent
y
variable are associated with smaller values of the
independent
x
variable, and vice versa. The values are all located on a
straight line with a negative slope, and therefore one can say that there is a
perfect negative linear association
between the two variables. Again,
perfect negative linear association rarely occurs with sample data.