Name _____________________________ | Date ___________________ |

(Answer ID # 0403372)

1. | _____________________ | Given a data set comprised of 3262 measurements that is bell-shaped with a mean of 283. If 99.7% of the data lies between -2 and 568 then what is the standard deviation? |

2. | _____________________ | Given a data set comprised of 4741 measurements that is bell-shaped with a mean of 680. If 68% of the data lies between 581 and 779 then what is the standard deviation? |

3. | _____________________ | If a group of data has a mean of 26 and a standard deviation of 35.5, what is the interval that should contain at least 88.9% of the data? |

4. | _____________________ | Given a group of data with mean -2 and standard deviation 13, at least what percent of the data will fall between -28 and -2? |

5. | _____________________ | Given a data set comprised of 2770 measurements that is bell-shaped with a mean of 692. It has a standard deviation of 64. What percentage of the data should lie between 628 and 756? |

6. | _____________________ | If a group of data has a mean of 10 and a standard deviation of 63.1, what is the interval that should contain at least 93.8% of the data? |

7. | _____________________ | Given a data set comprised of 4542 measurements that is bell-shaped with a mean of -790. It has a standard deviation of 18. What percentage of the data should lie between -826 and -754? |

8. | _____________________ | Given a data set comprised of 3762 measurements that is bell-shaped with a mean of 138. It has a standard deviation of 65. What percentage of the data should lie between 73 and 138? |

9. | _____________________ | Given a group of data with mean 50 and standard deviation 13, at least what percent of the data will fall between 50 and 76? |

10. | _____________________ | If a group of data has a mean of 85 and a standard deviation of 2, what is the interval that should contain at least 75% of the data? |

11. | _____________________ | Given a data set comprised of 3168 measurements that is bell-shaped with a mean of 276. It has a standard deviation of 54. What percentage of the data should lie between 168 and 384? |

12. | _____________________ | Given a group of data with mean 42 and standard deviation 8, at least what percent of the data will fall between 26 and 42? |

13. | _____________________ | Given a data set comprised of 4930 measurements that is bell-shaped with a mean of -630. It has a standard deviation of 84. What percentage of the data should lie between -882 and -630? |

14. | _____________________ | Given a group of data with mean 80 and standard deviation 9, at least what percent of the data will fall between 35 and 125? |

15. | _____________________ | Given a data set comprised of 3237 measurements that is bell-shaped with a mean of 428. If 68% of the data lies between 389 and 467 then what is the standard deviation? |

16. | _____________________ | Given a data set comprised of 2183 measurements that is bell-shaped with a mean of 444. It has a standard deviation of 42. What percentage of the data should lie between 402 and 444? |

17. | _____________________ | Given a data set comprised of 2887 measurements that is bell-shaped with a mean of 233. If 95% of the data lies between 109 and 357 then what is the standard deviation? |

18. | _____________________ | If a group of data has a mean of 58 and a standard deviation of 76.9, what is the interval that should contain at least 75% of the data? |