## Lesson 6: Scatterplots

Review:

- Exam 1 Results
- Exam 1 Solutions
- Court of Appeals

Presentation:

**Scatterplots**- Relationship between 2 variables
- independent (x) and dependent (y)
- explanatory (x) and response (y)
- horizontal axis (x) and vertical axis (y)

- Examples
- Alternative Uses
- Predicted vs Actual

- Video
- Demonstrate scatterplot construction with Ice Cream Sales data in Sheets

- Relationship between 2 variables

Activity:

- Exercises 2.6 and 2.7 on p. 95
- How strong is the relationship between the score on the first test and the score on the final exam?
- Which variable should be used as the independent/explanatory (x) variable?
- Make a scatterplot and describe the relationship.

First Test | Final Exam |

153 | 145 |

144 | 140 |

162 | 145 |

149 | 170 |

127 | 145 |

118 | 175 |

158 | 170 |

153 | 160 |

- How strong is the relationship between the score on the second test and the score on the final exam?
- Which variable should be used as the independent/explanatory (x) variable?
- Make a scatterplot and describe the relationship.

Second Test | Final Exam |

158 | 145 |

162 | 140 |

144 | 145 |

162 | 170 |

136 | 145 |

158 | 175 |

175 | 170 |

153 | 160 |

Assignment:

- Use Fertility-GDP data to make a scatterplot in Sheets
- Text Ch. 2, pp. 83-92