This key facts covers Common Probability Scenarios within Basic Probability for GCSE Mathematics. Revise Basic Probability in Probability for GCSE Mathematics with 13 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 6 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Common Probability Scenarios
| Scenario | Total Outcomes | Example Event | Probability |
|---|---|---|---|
| Coin flip | 2 | Getting heads | 1/2 |
| Rolling a die | 6 | Rolling a 6 | 1/6 |
| Picking from 10 balls | 10 | Picking the red ball | 1/10 |
| Drawing from deck | 52 | Drawing an ace | 4/52 = 1/13 |
Practice questions for Basic Probability
Which value represents an impossible event on a probability scale?
Explain what is meant by theoretical probability and state the formula used to calculate it.
Quick recall flashcards
Can probability be negative?
No, probability must be between 0 and 1
What is probability?
A measure of how likely an event is to occur, expressed as a number between 0 and 1