What is a Tree Diagram?
A tree diagram is a graphical presentation that is used in business statistics to solve problems related to probabilities. A tree diagram is made up of two main parts, nodes and branches. Nodes can be further divided into two types, parent nodes and sibling nodes. The parent node stands for a specific event and always has a probability of 1. Sibling nodes represent other potential events related to the parent event. The branches show the likelihood of these events happening.
For example, consider a simple probability tree with just two branches. The first node shows the parent event of flipping a coin. The sibling nodes represent the possible outcomes, heads and tails. Each branch is marked with 0.5, indicating the probability of each outcome.
Table of Content
- Features of Tree Diagram
- How to Draw a Tree Diagram?
- Tree Diagram for Conditional Probability
- Tree Diagram in Probability Theory
- Examples of Tree Diagram