Quickie Quiz 3

scatter_random.gif (2375 bytes)
1. Is there a relationship between these two variables? _____________
2. Is there a linear relationship between these two variables? __________
3. What is the degree of the relationship (perfect, high, moderate, low, or none)?
____________________________		 scatter_hilinear.gif (2352 bytes)
4. Is there a relationship between these two variables? _____________
5. Is there a linear relationship between these two variables? __________
6. What is the degree of the relationship (perfect, high, moderate, low, or none)?
____________________________
scatter_negperfect.gif (2038 bytes)
7. Is there a relationship between these two variables? _____________
8. Is there a linear relationship between these two variables? __________
9. What is the degree of the relationship (perfect, high, moderate, low, or none)?
____________________________
10. Is this a positive or negative relationship? ___________________		 scatter_sine.gif (2394 bytes)
11. Is there a relationship between these two variables? _____________
12. Is there a linear relationship between these two variables? __________
13. What is the degree of the relationship (perfect, high, moderate, low, or none)?
____________________________

 

 

14. Graph the following data on the graph seen further below.

Age in months
since conception		 Actual pounds
9 6.7
11 7.5
13 11.5
15 13.5
17 14.0

graph_birthblank.gif (3096 bytes)

15. Draw a straight line that you think best fits the data points.

16. Would you say that the correlation is low, moderate, or high?

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