a. Indicate whether the method of data collection is biased. If it is, briefly explain why. Ask the students at the gym on a Tuesday afternoon how many hours a week they work out to estimate the average amount of time students at the university work out. (3 pts) b. For each of the following statements, indicate whether the statement implies causation or just indicates association without causation. (i) If you study more, your grade will improve in this course. (2pt) (ii) Aging of the brain tends to be delayed in people with a college education.(2pt)