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Module 1: Regression line

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Interpretation of slope and intercept

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XSIQ
*

Core Mathematics - Interpretation of slope and intercept

Interpretation of slope and intercept

Gradient (slope) = -0.74

This means that for every day absent, it is predicted that exam scores
decrease by 0.74 marks.

Y- intercept = 93

This means if a student has nil days absent (and there is no other
information available,) their exam score is predicted to be 93.

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