AWS Certified Machine Learning - Specialty MLS-C01 — Question 223

Topic 1 · Question 223 · Select all that apply

A retail company wants to create a system that can predict sales based on the price of an item. A machine learning (ML) engineer built an initial linear model that resulted in the following residual plot: Which actions should the ML engineer take to improve the accuracy of the predictions in the next phase of model building? (Choose three.)

• ADownsample the data uniformly to reduce the amount of data.
• BCreate two different models for different sections of the data.
• CDownsample the data in sections where Price < 50.
• DOffset the input data by a constant value where Price > 50.
• EExamine the input data, and apply non-linear data transformations where appropriate.
• FUse a non-linear model instead of a linear model.

Select 3 answers to reveal the result.