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