Year 9 - Maths
Using lists to display outcomes for more than two events
Probability: possible outcomes
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Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit introduces and explores the concept of liklihood as a relative measure, and demonstrates multiple ways to represent likelihood such as Venn diagrams, tree diagrams and two-way tables.
Lesson Summary
You will learn to systematically find all the possible outcomes for more than two events by listing them.
Key Notes
- Possible outcomes for more than two events can be stated.
- Possible outcomes for more than two events can be listed.
- Possible outcomes for more than two events can be systematically listed.
Vocabulary To Learn
- Systematic: When listing outcomes systematically, they are listed in such a way as to ensure all outcomes are recorded.
Common Mistakes To Avoid
- Pupils want to avoid writing lists of outcomes.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Possible outcomes for more than two events can be stated. Possible outcomes for more than two events can be listed.
2. Use this key word in a maths sentence and explain it clearly. 'Systematic'
When listing outcomes systematically, they are listed in such a way as to ensure all outcomes are recorded. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils want to avoid writing lists of outcomes. Correction: Always model and bring explicit attention to a systematic list. The benefits of working systematically is the likelihood of error is reduced.
More Lessons In This Unit
- Comparing representations of outcomes for more than two events Study Guide
- Comparing representations of outcomes for two events Study Guide
- Equally likely outcomes Study Guide
- Experiments to determine how likely an outcome is Study Guide
- Non-equally likely outcomes Study Guide
- Problem solving with possible outcomes Study Guide
- The scale of likelihoods Study Guide
- Using a Venn diagram to display outcomes for more than two events Study Guide
- Using a Venn diagram to display outcomes for two events Study Guide
- Using an outcome tree to display outcomes for more than two events Study Guide
- Using an outcome tree to display outcomes for two events Study Guide
- Using lists to display outcomes for two events Study Guide
- Using two-way tables to display outcomes for two events Study Guide
Browse all guides in the Year 9 Maths guide library.