The standard deviation of a portfolio: A. is a weighted average of the standard deviations of the individual securities held in that portfolio. B. can be less than the weighted average of the standard deviations of the individual securities held in that portfolio. C. measures the amount of diversifiable risk inherent in the portfolio. D. is a measure of that portfolio's systematic risk.

Miller company’s most recent contribution format income statement is shown below: total per unit sales (20,000 units) $300,000 $15.00 variable expenses 180,000 9.00 contribution margin 120,000 $6.00 fixed expenses 70,000 net operating income $ 50,000 required: prepare a new contribution format income statement under each of the following conditions (consider each case independently): (do not round intermediate calculations. round your "per unit" answers to 2 decimal places.) 1. the number of units sold increases by 15%.