An R² Close to 1

question 65

Multiple Choice

An R² close to 1

• A) does not happen with real data.
• B) indicates that almost all of the variation in the dependent variable is explained by the regression.
• C) does not explain variation as well as an R² that is above 2.
• D) means that the regression line does not fit the data very well.

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Definitions:

Apical Impulse

The point of maximal impulse on the chest wall, indicating the position of the heart; often felt during cardiac examination.

Intercostal Space

The anatomical area between two ribs, through which nerves and blood vessels pass.

Midclavicular Line

An imaginary vertical line running down from the midpoint of the clavicle in the human body, often used as a reference in medical examinations.

Jugular Venous Pulsations

Observable pulsations of the jugular vein in the neck, used clinically to assess central venous pressure and heart function.