Suppose That the Value of R² for an Estimated Regression

question 17

Multiple Choice

Suppose that the value of R² for an estimated regression model is exactly one. Which of the following are true?
(I) All of the data points must lie exactly on the line
(ii) All of the residuals must be zero
(iii) All of the variability of y about is mean have has been explained by the model
(I) The fitted line will be horizontal with respect to all of the explanatory variables

• A) (ii) and (iv) only
• B) (i) and (iii) only
• C) (i), (ii), and (iii) only
• (I), (ii), (iii), and (iv)

---

Definitions:

Abatement

A reduction or decrease, often referred to in the context of taxes, rent, or legal penalties.

Bequests

Bequests are gifts of money or personal property left to a beneficiary through a will or estate plan.

Adequate

Sufficient to satisfy a requirement or meet a need.

Executor

A legal term referring to an individual appointed to carry out the terms of a will.