Machine Learning Quiz

What is the primary goal of supervised learning?

• To clean and preprocess data

• To automate decision-making

• To learn the mapping between inputs and outputs

• To identify patterns in unlabeled data

Which of the following is a key application of unsupervised learning?

• Email spam detection

• Predicting house prices

• Diagnosing diseases

• Customer segmentation for marketing

What does linear regression predict?

• Anomalies in data

• Continuous values

• Categorical outcomes

• Patterns in unlabeled data

What is a decision tree primarily used for?

• Data normalization

• Feature selection

• Classification and regression tasks

• Data cleaning

What does Gini impurity measure?

• The likelihood of incorrect labeling

• The average of the squares of errors

• The complexity of a model

• The amount of disorder in data

Which method is used to improve the quality of data?

• Model training

• Data cleaning

• Feature selection

• Data visualization

What is the purpose of feature selection?

• To remove irrelevant information

• To increase data size

• To automate data collection

• To visualize data

Which technology is commonly used for processing large datasets?

• PowerPoint

• Notepad

• Hadoop

• Microsoft Excel

What is a key benefit of using cloud computing for big data?

• Increased manual processing

• On-demand storage and processing power

• Limited scalability

• Reduced data security

What does entropy measure in data?

• The average error in predictions

• The amount of disorder or uncertainty

• The amount of order in data

• The complexity of a decision tree