A Machine Learning Specialist Is Attempting to Build a Linear

question 11

Multiple Choice

A Machine Learning Specialist is attempting to build a linear regression model. Given the displayed residual plot only, what is the MOST likely problem with the model?

• A) Linear regression is inappropriate. The residuals do not have constant variance.
• B) Linear regression is inappropriate. The underlying data has outliers.
• C) Linear regression is appropriate. The residuals have a zero mean.
• D) Linear regression is appropriate. The residuals have constant variance.

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Definitions:

Clairvoyance

The supposed ability to gain information about an object, person, location, or physical event through means other than the known human senses.

Olfactory Sense

The sense of smell, which detects airborne chemicals and translates them into the perception of odors.

Telepathy

The supposed communication of thoughts or ideas by means other than the known senses.

Signal-Detection Theory

A psychological theory that explains how individuals distinguish between informative signals and noise in the environment under conditions of uncertainty.