Name _____________________________ | Date ___________________ |

(Answer ID # 0740113)

1. | _____________________ | Given a data set comprised of 4206 measurements that is bell-shaped with a mean of 910. If 68% of the data lies between 842 and 978 then what is the standard deviation? |

2. | _____________________ | Given a group of data with mean 40 and standard deviation 9, at least what percent of the data will fall between 22 and 40? |

3. | _____________________ | Given a data set comprised of 1988 measurements that is bell-shaped with a mean of 996. It has a standard deviation of 36. What percentage of the data should lie between 960 and 1032? |

4. | _____________________ | If a group of data has a mean of -39 and a standard deviation of 15.6, what is the interval that should contain at least 88.9% of the data? |

5. | _____________________ | Given a data set comprised of 2053 measurements that is bell-shaped with a mean of 123. It has a standard deviation of 70. What percentage of the data should lie between 123 and 193? |

6. | _____________________ | If a group of data has a mean of 31 and a standard deviation of 37.8, what is the interval that should contain at least 88.9% of the data? |

7. | _____________________ | Given a data set comprised of 5012 measurements that is bell-shaped with a mean of -285. It has a standard deviation of 72. What percentage of the data should lie between -357 and -213? |

8. | _____________________ | Given a data set comprised of 4475 measurements that is bell-shaped with a mean of 294. If 99.7% of the data lies between 57 and 531 then what is the standard deviation? |

9. | _____________________ | Given a group of data with mean 58 and standard deviation 6, at least what percent of the data will fall between 46 and 70? |

10. | _____________________ | Given a data set comprised of 5314 measurements that is bell-shaped with a mean of 151. If 99.7% of the data lies between 67 and 235 then what is the standard deviation? |

11. | _____________________ | Given a data set comprised of 2004 measurements that is bell-shaped with a mean of 847. It has a standard deviation of 35. What percentage of the data should lie between 777 and 917? |

12. | _____________________ | Given a data set comprised of 4962 measurements that is bell-shaped with a mean of -755. It has a standard deviation of 97. What percentage of the data should lie between -1046 and -464? |

13. | _____________________ | If a group of data has a mean of 84 and a standard deviation of 48.7, what is the interval that should contain at least 75% of the data? |

14. | _____________________ | Given a group of data with mean 80 and standard deviation 6, at least what percent of the data will fall between 80 and 98? |

15. | _____________________ | Given a data set comprised of 2281 measurements that is bell-shaped with a mean of 386. If 95% of the data lies between 198 and 574 then what is the standard deviation? |

16. | _____________________ | Given a data set comprised of 2543 measurements that is bell-shaped with a mean of 781. It has a standard deviation of 18. What percentage of the data should lie between 781 and 835? |

17. | _____________________ | Given a group of data with mean 35 and standard deviation 15, at least what percent of the data will fall between -40 and 110? |

18. | _____________________ | If a group of data has a mean of 4 and a standard deviation of 86.7, what is the interval that should contain at least 93.8% of the data? |