This key facts covers Key Facts within Sample Spaces for GCSE Mathematics. Revise Sample Spaces in Probability for GCSE Mathematics with 11 exam-style questions and 20 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Key Facts
- Sample Space (S): The set of all possible outcomes of an experiment
- Outcome: A single result from an experiment
- Event: A subset of the sample space (one or more outcomes)
- Equally Likely Outcomes: Each outcome has the same probability of occurring
- The number of outcomes in the sample space is denoted as n(S)
- For equally likely outcomes: P(event) = n(event) / n(S)
Practice questions for Sample Spaces
A fair coin is flipped and a fair die (numbered 1 to 6) is rolled. How many possible outcomes are there in total?
Explain what a sample space diagram is and why it is useful when finding probabilities for two combined events.
Quick recall flashcards
What is a sample space?
The set of all possible outcomes of an experiment
What is an outcome?
A single result from an experiment