4. Decision trees

What is the process of assigning data to a class by applying labels called?

• Classification

• Segmentation

• Clustering

• Regression

What type of data is used to train a classification model?

• Unlabeled data

• Pre-labeled data

• Random data

• Unstructured data

What can a classification model predict for new data?

• A class

• A label

• A number

• A pattern

What are the factors to consider when choosing a type of model in machine learning?

• The type of data, the problem to solve, and the need for explainability

• The color of the data, the speed of the computer, and the size of the screen

• The brand of the software, the age of the computer, and the type of keyboard

• The weather, the time of day, and the type of coffee

What is a decision tree used for?

• To classify data

• To store data

• To delete data

• To encrypt data

What are decision trees made up of?

• Leaves

• Nodes

• Branches

• Roots

What is the top node of a decision tree called?

• Leaf

• Branch

• Root

• Stem

What are the two types of nodes in a decision tree?

• Decision node and branch

• Leaf and root

• Decision node and leaf

• Root and branch

What do decision nodes contain that will split the data?

• Leaves

• Conditions

• Roots

• Branches

What do leaf nodes in a decision tree usually represent?

• A single class

• Multiple classes

• A decision node

• A root node