Google+1. The Definition of EBITDA: It is an acronym for Earnings Before Interest Taxes Depreciation and Amortization. EBITDA is often used as a measure of a businessâs cash flow. Also it is used frequently in many business valuation formulas, depending on the businessâs specific industry.he Definition of EBITDA: It is an acronym for Earnings Before Interest Taxes Depreciation and Amortization.
However, a terminological difference arises in the expression mean squared error (MSE). The mean squared error of a regression is a number computed from the sum of squares of the computed residuals, and not of the unobservable errors. If that sum of squares is divided by n, the number of observations, the result is the mean of the squared residuals.
The method of least squares. The r.m.s. error for the regression line of y on x is: The regression equation is the equation for the line that produces the least r.m.s. error or standard error of the estimate. If x and y are perfectly related, that is all points lie on the regression line, the standard error of estimate is zero (the square root of 1 - 12 = 0), there is no deviation from the line.