Which of the following statements are true: 1: The high-low method and regression analysis are ways in which companies can classify mixed costs Il: A weakness of the high-low method is that it only employs two data points Ill: A regression analysis more accurately classifies mixed costs by employing information from all data points IV: Both the high-low method and regression analysis can be influenced by outlier data points O I, II, III, IV O IV only O I only O I &lI O I & IV