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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. |

Created by:
mrhunt