Learn decision trees
Guides to making and analysing decision trees: the outline format, expected value, rollback and sensitivity.
Guides
- How to make a decision tree, step by step
A step-by-step guide to making a decision tree: frame the question, list options, add chances and payoffs, roll it back, and read the answer.
- Expected value and decision trees, explained
What expected value means, how rollback works, and a worked example with the switch point, using a real tree you can edit.
Tools
- Analysis calculator
Paste a decision tree and get the expected value of every option, the recommended choice, the risk profile and the rollback step by step, like a textbook solution.
- Expected value calculator
Enter outcomes and their probabilities to get the expected value, then turn it into a full decision tree in one click.