Name _____________________________ | Date ___________________ |

(Answer ID # 0273566)

1. | _____________________ | Given a data set comprised of 4486 measurements that is bell-shaped with a mean of 722. If 68% of the data lies between 716 and 728 then what is the standard deviation? |

2. | _____________________ | Given a group of data with mean 80 and standard deviation 5, at least what percent of the data will fall between 80 and 90? |

3. | _____________________ | Given a group of data with mean 35 and standard deviation 6, at least what percent of the data will fall between 35 and 59? |

4. | _____________________ | Given a data set comprised of 2242 measurements that is bell-shaped with a mean of 310. If 68% of the data lies between 219 and 401 then what is the standard deviation? |

5. | _____________________ | Given a data set comprised of 3968 measurements that is bell-shaped with a mean of 809. It has a standard deviation of 91. What percentage of the data should lie between 536 and 1082? |

6. | _____________________ | Given a data set comprised of 5191 measurements that is bell-shaped with a mean of 434. It has a standard deviation of 39. What percentage of the data should lie between 434 and 551? |

7. | _____________________ | If a group of data has a mean of 67 and a standard deviation of 16.8, what is the interval that should contain at least 75% of the data? |

8. | _____________________ | If a group of data has a mean of 13 and a standard deviation of 96.9, what is the interval that should contain at least 88.9% of the data? |

9. | _____________________ | Given a data set comprised of 4992 measurements that is bell-shaped with a mean of -646. It has a standard deviation of 11. What percentage of the data should lie between -646 and -613? |

10. | _____________________ | Given a data set comprised of 2187 measurements that is bell-shaped with a mean of 181. It has a standard deviation of 52. What percentage of the data should lie between 129 and 233? |

11. | _____________________ | If a group of data has a mean of -75 and a standard deviation of 73.4, what is the interval that should contain at least 75% of the data? |

12. | _____________________ | Given a group of data with mean 35 and standard deviation 9, at least what percent of the data will fall between 35 and 80? |

13. | _____________________ | Given a data set comprised of 4278 measurements that is bell-shaped with a mean of 806. It has a standard deviation of 94. What percentage of the data should lie between 524 and 1088? |

14. | _____________________ | Given a data set comprised of 4338 measurements that is bell-shaped with a mean of 245. If 99.7% of the data lies between 200 and 290 then what is the standard deviation? |

15. | _____________________ | Given a group of data with mean 40 and standard deviation 9, at least what percent of the data will fall between 40 and 67? |

16. | _____________________ | Given a data set comprised of 3230 measurements that is bell-shaped with a mean of -233. It has a standard deviation of 29. What percentage of the data should lie between -233 and -146? |

17. | _____________________ | If a group of data has a mean of 23 and a standard deviation of 10.2, what is the interval that should contain at least 75% of the data? |

18. | _____________________ | Given a data set comprised of 4469 measurements that is bell-shaped with a mean of 934. If 68% of the data lies between 917 and 951 then what is the standard deviation? |