Biased Sample | | Median=The middle number when the numbers are written in order. |

Dependent Events | | Mode=The number(s) repeated most often. |

Independent Events | | A part of the population |

Combination | | Interquartile Range=Upper Q-Lower Q. |

Permutation | | Every event is listed outwards in a tree until every event has been listed. |

Measures of Central Tendency | | A question that influences a specific answer. |

Stratified Random Sample | | Mean=Average |

Survey | | Only members of the group who are easily acceptable are selected. |

Quartiles | | In a set of data, it is the average amount all of the data is away from the mean. |

Biased Question | | Add AND Subtract |

Quartiles | | A sample that does not represent all the characteristics of a sample. |

Population | | Lower Q.=median of bottom half of data. |

Independent Events | | The chance of an event occuring. |

Representative Sample | | A rule is used to select members of the population. |

Range | | The number of ways an event can occur when you are not using all objects. |

Tree Diagram | | Multiply |

Expected Value | | The probability of more than one event with the workd "AND,BOTH,or IN A ROW". |

Counting Principle | | The number of ways an event can occur. |

Permutation | | The number of ways an event can occur when you are not using all objects. |

Measures of Central Tendency | | Add |

Mutually Exclusive Events | | A median of a set of data; normally split up into a lower and upper. |

Factorial | | The probability of more than one event with the 'OR". |

Sample | | To multiply the number all the way down until it reaches 1. |

Self-Selected Sample | | Members of a population choose to be part of the sample. |

Systematic Sample | | Multiply |

Random Sample | | Every member of the population has an equal chance of being selected. |

Quartiles | | Thehighest number in a set of data minus thelowest number in a set of data. |

Dependent Events | | When probability of an event is multiplied by it's worth to determine a postivie or negative outcome. |

Combination | | Multiply |

Counting Principle | | The probability of more than one event with the 'OR". |

Measures of Central Tendency | | Order Matters |

Mutually Exclusive Events | | The entire group you want information about. |

Overlapping Events | | Order does NOT matter. |

Quartiles | | The population is divided into distinct groups.Members selected randomly. |

Probability | | The probability of more than one event with the word "AND,BOTH,or IN A ROW". |

Convenience Sample | | Uper Q.=median of upper half of data. |

Overlapping Events | | A sample that accurately reflects the characteristics of a population. |

Mean Absolute Deviation | | Study of one or more characteristics of a group. |