An Analyst Has Identified 3 Independent Variables (X₁, X₂, X₃)

question 54

Multiple Choice

An analyst has identified 3 independent variables (X₁, X₂, X₃) which might be used to predict Y. He has computed the regression equations using all combinations of the variables and the results are summarized in the following table. Which combination of variables provides the best regression results?

• A) X₁
• B) X₁, X₂ and X₃
• C) X₁ and X₂
• D) X₂ and X₃

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Definitions:

Veracity

Adherence to the truth; a principle in healthcare focusing on honesty and accuracy in interactions between patients and healthcare professionals.

Full Disclosure

The act of providing all necessary information to all parties involved, often relating to financial, medical, or legal matters.

Nonmaleficence

A principle in ethics, especially relevant in healthcare, which obligates professionals to avoid causing harm to others.

Deontology

An ethical theory that uses rules to distinguish right from wrong, focusing on the adherence to moral duties and obligations.