Answer (A) is correct . Regression analysis is used to find an equation for the linear relationship among variables. The behavior of the dependent variable is explained in terms of one or more independent variables. Regression analysis is often used to estimate a dependent variable (such as cost) given a known independent variable (such as production).
Answer (B) is incorrect because Regression results are limited to observations within the relevant range.
Answer (C) is incorrect because Regression analysis does not use constraint functions.
Answer (D) is incorrect because The dependent variable is estimated using regression analysis.
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