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# Math Vocab#2

### Math Chapter 3

Question | Answer |
---|---|

Mean | the data set is the sum of the values divided by the number of values |

Median | the data set is the middle value when the values, the median is the mean of the two middle values |

Mode | the data set is the value tha occurs the most often. A data can have no mode, onemode, or more than one mode |

Population | the entire group of people or objects that you want information about |

Sample | a part of a population |

Random Sample | a sample selectedin such a way thateach member of the population has an equally likely chance to e part of the sample |

Biased sample | a sample that is not representive of the population from what it is selected |

Bar graph | a type of graph in which the lenght of the bars are used to represent and compare data |

Line graph | a type of graph in which points representing data pairs are connected by line segments |

Stem-and-leaf plot | a datadisplays that helps you see how data values are distributed |

Box-and-whisker plot | a data that displys that divides data values into five parts |

Lower quartile | the median of the lower half |

Upper quartile | the median of the upper half |

Lower extreme | the least value |

Upper extreme | the greatest value |

Frequency table | a table used to group data values into intervals |

Frequency | the number of data values that lie in an interval of a frequency table or a histogram |

Histogram | a graph that displays data from a frequency table |

Range | the difference between the greastest and the lowest in the data set |

Created by:
kimmk1209