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Question Which of the following statements related to cost estimation methods is false? 21 Not yet O a. The least-squares regression method is the most accurate and reliable method to answered determine the cost behavior compared to scatter-graph plot and high-low methods. Marked out of O b. The low-high method is used to derive an estimated line of cost behavior by 0.60 graphically connecting the two cost amounts identified with the highest and lowest Flag volume levels. question O c. The three methods determine a slope and an intercept. O d. The most complex method of cost estimation is the high-low method. O e. None of the given answers