Bagging the Noise

Max finished collecting a dataset with job descriptions and their corresponding salary ranges.

Unfortunately, there's a lot of noise in the dataset, and Max is not sure how to proceed.

A colleague recommended using bagging, but Max is unfamiliar with this technique. He looked into it and summarized his research.

Select all statements below that's correct about bagging:

Bagging is an effective technique to reduce the variance of a model.

Bagging is an effective technique to reduce the bias of a model.

Bagging trains a group of models, each using a subset of data selected randomly with replacement from the original dataset.