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Unit 6 - Mr. Hunt
Probability
| Term | Definition |
|---|---|
| Probability Scale | A number line going from 0 - 1 used compare probability of events happening. |
| Certain | The word used for an outcome that will always happen |
| Likely | The word used for an outcome that is between "even chance" and "certain". |
| Even Chance | The word used for an outcome that will happen half the time. |
| Unlikely | The word used for an outcome that is between "impossible" and "even chance". |
| Impossible | The word used for an outcome that will never happen |
| notation | A system of symbols used to represent special things. |
| Area Model | A type of bar model that shows visually how likely an outcome will occur compared to other possible outcomes. |
| Tree Diagram | A model that show all possible outcomes of a compound probability situation. |
| Frequency Chart | A chart that gives how often each particular outcome happened. |
| Outcome | the possible result of an experiment |
| Number of trials | The number of time an experiment is conducted. Should be at least 20 in order to get an accurate picture of probability |
| Simple Probability | A situation or experiment that has a single independent event occurring. |
| Compound Probability | A situation or experiment that has two independent events occurring. |
| Theoretical/Mathematical Probability | also known as calculated probability because is the fraction of a certain outcome occurring over all possible outcomes occurring |
| Experimental/Empirical Probability | the fraction of a certain outcome that occurred from an experiment over the total number of times the experiment occurred |
| Sample Space | a list of all possible outcomes of an experiment |
| Tally | A way of keeping count by drawing marks. Every fifth mark is drawn across the previous 4 marks. |