Disks
Squares
Circles
Triangles
Answer is Right!
Answer is Wrong!
The correct answer is: C. Circles
Decision nodes are represented by circles in a decision tree. They represent a point in the tree where a decision must be made. The branches coming out of a decision node represent the possible choices that can be made. The probability of each outcome is also shown on the branches.
The other options are incorrect because:
- Disks are used to represent chance nodes.
- Squares are used to represent terminal nodes.
- Triangles are not used to represent any type of node in a decision tree.