Enjoy learning Statistics Online! Please be sure to share and subscribe to our YouTube channel.

**ASK THE PROFESSOR FORUM**

Course Documents

Chapter 1 - Intro

Chapter 2 - Methods for Describing Sets of Data

Chapter 3 - Probability

Chapter 4 - Discrete Random Variables

Chapter 5 - Normal Random Variables

Chapter 6 - Sampling Distributions

Chapter 7 - Confidence Intervals

Chapter 8 - Tests of Hypothesis: One Sample

Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples

Sample Exam I: Chapters 1 & 2

Sample Exam II: Chapters 3 & 4

Sample Exam III: Chapters 5 & 6

Sample Exam IV: Chapters 7 & 8

3. Find the class boundaries for the following frequency distribution:

Weights |
frequency |

140 – 149 |
1 |

150 – 159 |
3 |

160 – 169 |
11 |

170 – 179 |
26 |

180 – 189 |
14 |

190 - 199 |
6 |

8. Find the relative frequency distribution from the following frequency distribution:

Weights |
frequency |

140 – 149 |
1 |

150 – 159 |
3 |

160 – 169 |
11 |

170 – 179 |
26 |

180 – 189 |
14 |

190 - 199 |
6 |

15. Find the class width used to create the following frequency distribution:

Weights |
frequency |

140 – 149 |
1 |

150 – 159 |
3 |

160 – 169 |
11 |

170 – 179 |
26 |

180 – 189 |
14 |

190 - 199 |
6 |