Eduqas A-Level Business A510QS
Enterprise, Business Plans and Location
Markets, Demand and Market Research
Business Structure and Sources of Finance
Revenue, Costs and Break-Even
Marketing and the Marketing Mix
Financial Planning and Accounts
People in Organisations
Motivation, Management and Employee Relations
Operations Management
Data and Market Analysis
Analysing Business Performance
Aims, Objectives and Strategy
Decision-Making and Investment Appraisal
Change and Risk Management
PEST Factors and the External Environment
Ethical, Legal and Environmental Factors
International Trade, Globalisation and the European Union
Decision-Making and Investment Appraisal
Evaluating decision tree analysis
- 3 things to know
- Component 2
Overview
What a tree adds and what it leaves out — estimated probabilities, no qualitative factors, and an expected value that is an average over repetitions a one-off decision never gets.
What you need to know
Answer each one before you reveal it.
Give two benefits of decision tree analysis.
How does a decision tree help a business compare risk?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Give two benefits of decision tree analysis.
Model answer
A decision tree forces managers to set out every option and outcome explicitly. Probabilities and payoffs then convert a vague comparison into a single figure for each option.
- 2
How does a decision tree help a business compare risk?
Model answer
A tree shows the range of outcomes attached to each option, not only the average. A manager can see that one option risks a large loss while another does not.
- 3
Give two limitations of decision tree analysis.
Model answer
The probabilities are estimates and a small change in one can reverse the recommendation. The technique also ignores qualitative factors entirely.
- 4
Why is the accuracy of a decision tree limited by its estimates?
Model answer
Every figure on the tree is a forecast of probability or payoff. The calculation is exact but the inputs are not, so the precision of the answer is misleading.
- 5
What qualitative factors does a decision tree omit?
Model answer
A tree omits the effect on staff morale, on the firm's reputation and on relationships with suppliers. Ethical considerations and the objectives of the owners are also outside it.
- 6
What is meant by sensitivity analysis in this context?
Model answer
Sensitivity analysis reworks the tree with different probabilities to see whether the recommendation changes. A recommendation that survives a wide range of assumptions is far more reliable than one that does not.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Decision-Making and Investment Appraisal, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
Or £46 a year, about £3.83 a month. Cancel anytime.