Homework 6: Decision Trees and Ensemble Learning

https://github.com/DataTalksC…

Deadline: 8 November 2025, 23:00

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Correct answers

Review the expected answers for this scored homework.

1. Most important featute (1 point)

'vehicle_weight'

'model_year'

'origin'

'fuel_type'

2. RMSE on validation (1 point)

0.045

0.45

4.5

45.0

3. Number of estimators (1 point)

200

4. Best max_depth (1 point)

5. Most important feature (1 point)

vehicle_weight

horsepower

acceleration

engine_displacement

6. XGBoost eta (1 point)

0.3

0.1

Both give equal value