Which statement below is false? Multiple Choice The least squares regression method computes the regression line that minimizes the sum of the squared deviations from the plotted points to the line. In a scattergraph of cost and activity, activity is the independent variable because it causes variations in the cost in describing the cost formula equation, YabX. 'b' equals the change in cost divided by the change in activity in the high-ow method The high-low method uses all of the available data to estimate fixed and variable costs