Add or Subtract

question 60

Multiple Choice

Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials) , leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
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Definitions:

Durbin-Watson Test

A statistical method designed to identify the existence of autocorrelation with a single lag in the residuals resulting from a regression study.

Positive Autocorrelation

A statistical property of a series indicating that values close together in time are positively correlated and tend to move in the same direction.

Durbin-Watson Statistic

A statistical measure employed to identify autocorrelation within the residuals of a regression analysis.

Independence of Errors

An assumption in statistical models indicating that the error terms are not correlated with each other.