haleysmith3929 haleysmith3929
  • 25-02-2022
  • Mathematics
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What is the effect of an outlier on the value of a correlation coefficient?.

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rubyhills135
rubyhills135 rubyhills135
  • 25-02-2022

Answer:

In most practical circumstances an outlier decreases the value of a correlation coefficient and weakens the regression relationship, but it’s also possible that in some circumstances an outlier may increase a correlation value and improve regression. Figure 1 below provides an example of an influential outlier.

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