### Range of a set of data

The range is the difference between the highest and lowest in a data set

Range = Highest − lowest

- Example 1. Find the range of 15 19 10 17 17 16 18
- Example 2. Find the range of 15 22 21 18 15 4 12 5 23

(a) | Order the numbers |

10, 15, 16, 17, 17, 18, 19 | |

(b) | Find the range |

Range = Highest − Lowest | |

Range = 19 − 10 = 9 |

(a) | Order the numbers |

4, 5, 12, 15, 15, 18, 21, 22, 23 | |

(b) | Find the range |

Range = Highest − Lowest | |

Range = 23 − 4 = 19 |

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