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Year 7 Probability
Definitions and facts from the NSW Year 7 Probability Topic
| Term | Definition |
|---|---|
| certain | sure to happen, the opposite of impossible |
| Probabilities range from | 0 to 1 |
| The probability of an impossible event is | 0 |
| event | a result involving one or more outcomes |
| Probabilities may be written as | fractions, decimals or percentages |
| sample space | a list of of all possible outcomes from an experiment and enclosed in a set of { } |
| random | every possible outcome has an equal chance |
| outcome | a single result from a situation or experiment |
| equally likely | to have exactly the same chance of occurring |
| complementary event | the 'opposite event' |