​The R² Statistic (Also Referred to as the Coefficient of Determination)

question 11

True/False

​The R² statistic (also referred to as the coefficient of determination) ranges in value from 0 to 1 (0 $\le$ R² $\le$ 1) and indicates the proportion of the total variation in the dependent variable Y around its mean (average) that is accounted for by the independent variable(s) in the estimated regression function.

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Definitions:

Stroke Volume

The volume of blood pumped from the left ventricle of the heart with each beat, a critical component of cardiac output and cardiovascular health.

Contractility

The capability of muscle tissue to contract or shorten, enabling movement and force generation.

Hypoxic

A condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level.

Urine Output

The amount of urine produced by the kidneys and excreted by the body, used as an important indicator of kidney function and fluid balance.