Name _____________________________ | Date ___________________ |

(Answer ID # 0324955)

1. | _____________________ | Given a data set comprised of 3127 measurements that is bell-shaped with a mean of 379. If 68% of the data lies between 305 and 453 then what is the standard deviation? |

2. | _____________________ | Given a data set comprised of 2333 measurements that is bell-shaped with a mean of 569. It has a standard deviation of 73. What percentage of the data should lie between 423 and 715? |

3. | _____________________ | Given a data set comprised of 1970 measurements that is bell-shaped with a mean of 140. It has a standard deviation of 40. What percentage of the data should lie between 60 and 220? |

4. | _____________________ | If a group of data has a mean of 14 and a standard deviation of 28.8, what is the interval that should contain at least 88.9% of the data? |

5. | _____________________ | If a group of data has a mean of 82 and a standard deviation of 68.2, what is the interval that should contain at least 75% of the data? |

6. | _____________________ | Given a data set comprised of 3978 measurements that is bell-shaped with a mean of -635. It has a standard deviation of 47. What percentage of the data should lie between -682 and -588? |

7. | _____________________ | Given a group of data with mean 50 and standard deviation 13, at least what percent of the data will fall between 11 and 89? |

8. | _____________________ | Given a data set comprised of 4960 measurements that is bell-shaped with a mean of 914. If 95% of the data lies between 770 and 1058 then what is the standard deviation? |

9. | _____________________ | Given a group of data with mean 40 and standard deviation 6, at least what percent of the data will fall between 40 and 64? |

10. | _____________________ | Given a data set comprised of 5167 measurements that is bell-shaped with a mean of 305. If 95% of the data lies between 231 and 379 then what is the standard deviation? |

11. | _____________________ | Given a data set comprised of 3842 measurements that is bell-shaped with a mean of 620. It has a standard deviation of 51. What percentage of the data should lie between 518 and 620? |

12. | _____________________ | Given a group of data with mean 21 and standard deviation 14, at least what percent of the data will fall between 21 and 49? |

13. | _____________________ | Given a group of data with mean 80 and standard deviation 12, at least what percent of the data will fall between 44 and 80? |

14. | _____________________ | Given a data set comprised of 3619 measurements that is bell-shaped with a mean of 765. If 95% of the data lies between 697 and 833 then what is the standard deviation? |

15. | _____________________ | If a group of data has a mean of 82 and a standard deviation of 89.7, what is the interval that should contain at least 75% of the data? |

16. | _____________________ | Given a data set comprised of 4128 measurements that is bell-shaped with a mean of -854. It has a standard deviation of 78. What percentage of the data should lie between -1010 and -854? |

17. | _____________________ | If a group of data has a mean of -41 and a standard deviation of 13, what is the interval that should contain at least 75% of the data? |

18. | _____________________ | Given a data set comprised of 3042 measurements that is bell-shaped with a mean of 890. It has a standard deviation of 15. What percentage of the data should lie between 890 and 905? |