Overfitting
A simple straight line already explains the data just fine, but you could still draw a wiggly curve that passes through every single point. It "fits" the past perfectly — and is nearly useless for the future.
Think & Rich
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A simple straight line already explains the data just fine, but you could still draw a wiggly curve that passes through every single point. It "fits" the past perfectly — and is nearly useless for the future.
Think & Rich
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