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
Notes Over 8.5 Scatter Plots 14 years education 1. Describe the person represented by point B. $90,000 a year
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
Notes Over 8.5 Scatter Plots 3. Describe the relationship between years of education completed and income. More years means more money
Notes Over 8.5 Scatter Plots 4. What kind of correlation does this graph have? Positive
Notes Over Make a scatter plot of the following data. CityLoc.Precip Atlanta3451 Boston42 Chicago4236 Duluth4730 Honolulu2122 Houston3046 Juneau5854 Miami2656 Phoenix338 Portland44 San Diego3310 Wichita
Notes Over Make a scatter plot of the following data What kind of correlation does this graph have? None
Pg – 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
Pg – 5 #1 – 6, 7 – Describe the student represented by point A. Television Physical Activity 4 hr television 2 hr Physical Activity
Pg – 5 #1 – 6, 7 – How many students had one hour of physical activity or less? Television Physical Activity 8 students
Pg – 5 #1 – 6, 7 – How many students spent four or more hours watching television? Television Physical Activity 6 students
Pg – 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
Pg – 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
Pg – 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
Pg – 5 #1 – 6, 7 – 21