Question: You are fitting a supervised machine learning model and observe that your model is displaying characteristics of underfitting. Which of the following approaches can you

You are fitting a supervised machine learning model and observe that your model is displaying characteristics of underfitting. Which of the following approaches can you take to improve your model?

Check all that apply

1. Increase level of regularization in your model

2. Remove features

3. Add features

4. Use a less expressive / complex model

5. Use a more expressive / complex model

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