15. To classify all costs as either fixed or variable, we will look at three methods. Which is not one of the three methods: a. Contribution Margin b. Scatter diagram c. High-low method d. Regression e. None of the above 16. Job order production does not utilize which of the following in the calculation of Job Cost: a. Direct materials b. Direct labor. c. Overhead costs supporting the production of more than one job. d. Selling and general administrative costs. e. None of the above. 2