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# 8th probability data

### 8th grade knowledge map probability and data and statistics

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

_____ is the ratio of favorable outcomes to total possible outcomes. | Probability |

_____ probability is mathematically what should happen. | Theoretical |

_____ probability is what does happen. | Experimental |

When two events have no effect on each other, they are considered _____ events. | independent |

When a second event is affected by a previous event, they are considered _____ events. | dependent |

_____ are experiments designed to act out a situation in real life with a given probability. | Simulations |

_____ is the measures of mean, median, and mode. | Central tendency |

The _____ , or average, is found by taking the sum of the data divided by the number of data. | mean |

The _____ is the most frequently occurring piece of data. | mode |

The _____ is the middle piece of data when in order from least to greatest. | median |

The _____ of the data is the difference between the greatest value and the smallest value in the data set. | range |

A _____ compares two sets of data to see relationships. | scatter plot |

A _____ is a measure of how one variable depends on or is related to another. | correlation |

A _____ is a relationship between two sets of vaiables where both sets increase. | positive correlation |

A _____ is a relationship between two sets of variables where one set increases and the other decreases. | negative correlation |

If there is no relationship between the two variables, they have _____ . | no correlation |

_____ represent how data changes over time. | Line graphs |

A _____ is a bar graph that represents frequency of data in intervals. | histogram |

_____ are best for comparing parts to a whole. | Circle graphs |

A _____ is a diagram showing frequency of data on a number line. | line plot |

A _____ is an arrangement of numbers that separate the digits into columns. | stem and leaf plot |

A _____ is a graphical method for showing the median, quartiles, and extremes of data. | box and whisker plot |

The _____ is the median of the lower half of an ordered set of data. | lower quartile |

The _____ is the median of the upper half of an ordered set of data. | upper quartile |

_____ are points of data that don't fit the general pattern. | Outliers |

A _____ should be a randomly selected group chosen for the purpose of collecting data. | sample |

_____ are graphs made to misrepresent the data by using skewed scales, intervals, and samples. | Misleading graphs |

Created by:
suev503
on 2008-10-26