Suppose we have data for 1000 students for a period of one year. The data show that those students who spend more hours studying have a higher grade point average (GPA). We can say that Question 47 Not yet answered Marked out of 0.50 Select one: P Flag question a. there is a causal relationship between hours of study time and GPA b. having a higher GPA leads students to spend more time studying c. there is a positive correlation between hours of study time and GPA. d. more hours spent studying leads to a higher GPA. e. if hours of study time increase, then GPA will automatically increase. Question 48 Consider a basket-producing firm with fixed capital. If the firm can produce 24 baskets per day with 3 workers and then increases production to 36 baskets per day with 4 workers, then which of the following statements is definitely true? Not yet answered Marked out of 0.50 Select one: P Flag question With 4 workers, the average product is greater than the marginal product. b. The firm has passed the point of diminishing marginal productivity. G. Marginal product for this firm is rising. d. Average product for this firm is rising. e. The marginal product of the fourth worker is 9.