Machine Learning Fundamentals: Practical Applications and Concepts Practice Questions - Machine Learning

Question 1

In a supervised learning project predicting house prices, the model shows excellent performance on training data but poor performance on test data. This is most likely an example of:

Accepted Answer

B) Overfitting

Answer

A) Underfitting

Answer

C) Feature engineering

Answer

D) Dimensionality reduction

Question 2

Principal Component Analysis (PCA) is primarily used for which purpose in machine learning?

Accepted Answer

B) Dimensionality reduction while preserving variance

Answer

A) Increasing model complexity

Answer

C) Adding more features to the dataset

Answer

D) Creating supervised learning labels