mean median most

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mean | the sum of a group of data items divided by the number of data items | |

compatible numbers | numbers that are easy to divide | |

mode | the data items that occur most often in a group | |

outlier | a data item that is much greater or much less than the rest of the data items in a group | |

median | when an odd number of data items are written in order, the middle item is this | |

formula | an equation that shows a relationship between quantities that are represented by variables | |

measures of central tendency | numbers that describe groups of data | |

perimeter | the distance around a figure |

**Quisition** is a browser-based flashcard system that
repeats old cards and introduces new ones at optimal time
intervals. You can create your own card packs or use
those developed by others.