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  3. what is the purpose of cross-validation? specifica

What is the purpose of cross-validation? Specifically, why wouldn’t we test a hypothesis trained on all...

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Basic Math

  1. What is the purpose of cross-validation? Specifically, whywouldn’t we test a hypothesis trained on all of the availableexamples?

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Cross Validation is used to assess the predictive performance of the models and to judge how they perform outside the sample to a new data set also known as test data The motivation to use cross validation techniques is that when we fit a model we are fitting it    See Answer
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