INTERPRETATION, INTERPOLATION AND EXTRAPOLATION.

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Presentation transcript:

INTERPRETATION, INTERPOLATION AND EXTRAPOLATION

 Depends on the r2 (coefficient of determination). The closer the r2 is to one 1, the more confident we can make our predictions (more linear).  Also depends on the limits of the data set. We do not want to extrapolate too far off the data range, otherwise the accuracy of a prediction is not reliable.

Use extrapolation to predict the height of the girl when she turns 15. Discuss the reliability of this prediction.

 Complete Ex 3D pg127 Q’s 2-9