10. EPS and optimal debt ratio and the standard deviation of the earnings per share as shown in the following table. (Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet.) Williams Glassware has estimated, at various debt ratios, the expected earnings per share Debt ratioEarnings per share (EPS) 0% 20 40 60 80 2.97 3.53 3.97 3.84 Standard deviation of EPS $1.14 1.81 2.78 3.99 5.51 a. Estimate the optimal debt ratio on the basis of the relationship between earnings per share and the debt ratio. You will probably find it helpful to graph the relationship b. Graph the relationship between the coefficient of variation and the debt ratio. Label the areas associated with business risk and financial risk a. Estimate the optimal debt ratio on the basis of the relationship between earnings per share and the debt ratio debt ratio, with (2) per share earnings. (Select from Maximum EPS appears to be at (1) the drop-down menus.) b, The coefficient of variation for a debt ratio of 0% is The coefficient of variation for a debt ratio of 20% is The coefficient of variation for a debt ratio of 40% is The coefficient of variation for a debt ratio of 60% is The coefficient of variation for a debt ratio of 80% is Which of the two graphs below correctly depicts the debt ratio vs. the coefficient of variation? The correct graph is (3) . (Round to two decimal places.) . (Round to two decimal places.) . (Round to two decimal places.) . (Round to two decimal places.) . (Round to two decimal places.) . (Select from the drop-down menu.)