1. Suppose that you wanted to demonstrate exercise cause better health. What would you have to meet the three criteria for determining causality? List the 3 criteria

2. Summarize the relationship between satisfaction with life and romantic partners in the past year depicted in #8 indicate both variables in your answer and the direction relationship if any.

3. When you applied to the university you probably had to give your high school GPA because high school is strongly positively correlation with college GPA clearly whether a significant positive correlation between your high school GPA and your college GPA would be predictive or causal relationship. Explain your answer.