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Supposed that you have applied Decision Tree algorithm to your training set and validation set and you have got the following scenarios by choosing different depth for your algorithm. Which depth you will pick for your final model?
Depth | Training error | Validation error |
3 | 30% | 35% |
4 | 26% | 30% |
5 | 22% | 30% |
6 | 15% | 35% |