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A Good Enough Fit?

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Resources for this lesson:

> Glossary opens in new window
> Calculator Resources opens in new window
> Teacher Resources: Instructional Notes opens in new window

To better assess the model, Andrew also needs to examine the correlation coefficient.

Check Your Understanding

The correlation coefficient values range from −1 to 1.

This display is a horizontal scale from negative 1 to 1. The scale mark at negative 1 is labeled ‘Negative Slope’ and ‘All points perfectly fit a line.’ The scale mark at 0 is labeled ‘No linear correlation between the variables.’ The scale mark at 1 is labeled ‘Positive Slope’ and ‘All points perfectly fit a line.’

Check Your Understanding

 

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