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# EUS 7 Math

### EUS 7 Math: Probability & Statistics

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

complementary events | two events are complements if the sum of their probabilities is 1, (the probability of something happening plus the probability of not happening is 1) |

experimental probability | the ratio of the number of favorable results to the total number trials in a probability experiment; is based on what does happen in the experiment |

favorable outcome | a desirable outcome |

frequency table | a table that lists items and uses tally marks to collect data and show the number of times they occur |

interval | the equal parts a scale is divided into on a graph |

line plot | a number line used to show frequency of data |

mean | the mathematical average of data; found by finding the sum of all the data and dividing by the number of data pieces |

measure of central tendency | numbers or pieces of data that can represent or summarize a whole set of data, such as mean, median, and mode |

sample space | the set of all possible outcomes of a probability event |

scale | the set of numbers used to label an axis when graphing; must include the least and the greatest numbers in the set |

simple event | a probability event that consists of exactly one outcome |

stem-and-leaf plot | a display of numerical data in which each piece of data is separated into two numbers based on the place value and placed in columns of a t-chart |

theoretical probability | the ratio of the number of favorable outcomes to the total number of possible outcomes; is based on what should happen under perfect circumstances |

tree diagram | a visual representation that shows all possible outcomes in a probability event |

Created by:
debra allred