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Module 1: Residual analysis

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Residual analysis - part 3

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Core Mathematics - Residual analysis - part 3

Residual analysis - part 3

We now need to compare the r values for the linear model and the
transformed model to see which model accurately represents the pattern of
the data. As can be seen, the X model has an r value of 0.9751, compared
with 0.9326 for the linear model, which means that approximately 98% of the
variation in yield can be explained by its relationship with length
squared. The second model more accurately represents the pattern of the
data.

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