2. Notes Over 8.5 Positive Correlation Negative Correlation No Correlation Points can be approximated by a positive slope Points can be approximated by a negative slope Points cannot be approximated by a line

3. Notes Over 8.5 Scatter Plots 14 years education 1. Describe the person represented by point B. $90,000 a year

4. Notes Over 8.5 Scatter Plots 3 2. How many people have 14 years of education? $50,000; What are their incomes? $80,000; $90,000

5. Notes Over 8.5 Scatter Plots 3. Describe the relationship between years of education completed and income. More years means more money

6. Notes Over 8.5 Scatter Plots 4. What kind of correlation does this graph have? Positive

7. Notes Over 8.5 5. Make a scatter plot of the following data. CityLoc.Precip Atlanta3451 Boston42 Chicago4236 Duluth4730 Honolulu2122 Houston3046 Juneau5854 Miami2656 Phoenix338 Portland44 San Diego3310 Wichita3829 10 20 30 40 50 60 60 50 40 30 20 10

8. Notes Over 8.5 5. Make a scatter plot of the following data. 10 20 30 40 50 60 60 50 40 30 20 10 6. What kind of correlation does this graph have? None

9. Pg 412 8 – 5 #1 – 6, 7 – 21 The following scatter plot shows the average time a fifteen students spent watching television and the average time they spent on physical activity in a day. Television Physical Activity

10. Pg 412 8 – 5 #1 – 6, 7 – 21 1. Describe the student represented by point A. Television Physical Activity 4 hr television 2 hr Physical Activity

11. Pg 412 8 – 5 #1 – 6, 7 – 21 2. How many students had one hour of physical activity or less? Television Physical Activity 8 students

12. Pg 412 8 – 5 #1 – 6, 7 – 21 3. How many students spent four or more hours watching television? Television Physical Activity 6 students

13. Pg 412 8 – 5 #1 – 6, 7 – 21 Is there a positive correlation, a negative correlation, or no correlation between the set of data in each scatter plot? 0 4. No Correlation

14. Pg 412 8 – 5 #1 – 6, 7 – 21 Is there a positive correlation, a negative correlation, or no correlation between the set of data in each scatter plot? 0 5. Positive Correlation

15. Pg 412 8 – 5 #1 – 6, 7 – 21 Is there a positive correlation, a negative correlation, or no correlation between the set of data in each scatter plot? 0 5. Negative Correlation

16. Pg 412 8 – 5 #1 – 6, 7 – 21