Lesson 01 of 06 · about 4 min

Bias or variance

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Bias is error from a model that cannot represent the shape, so training and test both sit high. Variance is error from a model that memorizes the sample, so training looks excellent and the test falls apart.

Model A has 2% training error and 30% test error. Model B has 28% training error and 30% test error. Name each one.

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