Question: Use the training sample to estimate your model(s), and then use your validation sample to evaluate your model's performance. You can estimate multiple models if

Use the training sample to estimate your model(s), and then use your validation sample to evaluate your model's performance. You can estimate multiple models if you would like to do so, and you can decide which kinds of models would be most reasonable in this setting. Note: do not create your own split for training and validation; instead, just use the "training" variable that is already in the datase

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