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# Math Vocab Ch.12

### Vocab For Chapter 12 Math Test

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

Bias | When a survey question contains assumptions that may or may not be true |

Bivariate | A set of data that uses two variables |

Box-and-whisker plot | A graph that summarizes a set of data by displaying it along a number line |

Combination | A selection of objects without regard to order |

Complement of an Event | The probability of a random event not occurring |

Matrix | A rectangular array of numbers organized into rows or columns |

Element | Each number in a matrix |

Frequency | The number of fata values in an interval |

Frequency Table | A table grouping the data values into intervals |

Cumulative frequency table | A table showing the number of fata values that lie in or below a given interval |

Histogram | A graph that can display data from a frequency table |

Measures of Central Tendency | Summarize a set of data |

Outlier | Data value that is much greater or less that other values in the set |

Range | A measure of dispersion found by subtracting the smallest value from the largest |

Percentile Rank | The percentage of data values that are less than or equal to that value |

Quantitive | Measure characteristics numerically |

Qualitative | Measures characteristics categorically |

Univariate | A set of data that uses only one variable |

Population | The group you wish to gather information about |

Sample | A smaller group that you collect information about |

Random Sampler | Randomly selects them |

Systematic Sampler | Picks a number n and samples every nth person |

Stratified Sample | Divides people into similar groups and then randomly selects some from each group |

Fundamental Rule of Counting | M ways for one event, N ways for another: M times N ways for both events to occur |

Factorial | The product of the numbers from 1 to N |

Permutation | An arrangement of objects in which order matters |

Combination | A selection of objects in which order does not matter |

Probability | The likelihood that an event will happen |

Theoretical Probability | Logical thinking |

Experimental Probability | Do something |

Odds | A ratio that compares the number of favorable outcomes and unfavorable outcomes |

Compound Event | Combines two or more events using the words and or or. |

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zenzenlauren