I need help with questions 7,8,9

7. Professor Walker notices that students in his class with larger shoe sizes tend to have higher grade point averages (GPA). Based on this observation, what is the best description of the relationship between shoe size and grade point average? a) Circle your answer: Causal relationship Negative correlation No correlation Positive correlation Cannot be determined from the information provided causation? b) Suppose that professor Walker's data gives r = 0.9241. Does correlation imply 8. Researcher Thomas notices that people who were vaccinated had low COVID-19 risk than those who were not vaccinated. Based on this observation, what is the best description of the relationship between vaccine and risk of COVID-19? a) Circle your answer: Causal relationship No correlation Positive correlation Negative correlation Cannot be determined from the information provided a) Suppose that Thomas's data gives r = -0.8741. Does correlation imply causation? 9. Pharmacy Researcher Steve Beal states that prescription cost and teacher's salaries are highly correlated. Based on this observation, what is the best description of the relationship between vaccine and risk of COVID-19? a) Circle your answer: Positive correlation Causal relationship No correlation Cannot be determined from the information provided Negative correlation a) Suppose that Beal's data gives r = 0.8925. Does correlation imply causation