The scatterplot shows the median starting salaries and the median mid-career salaries for graduates at a selection of colleges. Complete parts (a) through (e) below. Mid-Career = -11,056 + 2.035 Start Med Mid-Career Salary (thousands of $) 30 40 50 60 70 80 Start Median Salary (thousands of $) a. As the data are graphed, which is the independent and which the dependent variable? The independent variable is median starting salary and the dependent variable is median mid-career salary. b. Why do you suppose median salary at a school is used instead of the mean? A. It is easier to calculate the median for a salary distribution instead of the mean. B. Salary distributions are usually bimodal, making the median a more meaningful measure of center. .9 C. Salary distributions are usually skewed, making the median a more meaningful measure of center. D. Salary distributions are usually bell-shaped, making the median a more meaningful measure of center. c. Using the graph, estimate the median mid-career salary for a median starting salary of $50,000. The median mid-career salary for a median starting salary of $50,000 is about $|:|. (Round to the nearest thousand as needed.)