Which of the Following Statements Is True About R²

question 82

Multiple Choice

Which of the following statements is true about r²?

• A)It is also called the coefficient of correlation.
• B)It is also called the coefficient of determination.
• C)It represents the percent of variation in X that is explained by Y.
• D)It represents the percent of variation in the error that is explained by Y.
• E)It ranges in value from -1 to + 1.

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Definitions:

Flexor Carpi Radialis

A muscle in the forearm that acts to flex and abduct the hand at the wrist joint.

Abductor Pollicis Longus

A muscle in the forearm that facilitates the abduction and extension of the thumb.

Flexor Digitorum Profundus

A muscle in the forearm that flexes the fingers, enabling grasping, writing, and other intricate movements.

Triceps Brachii

A large muscle on the back of the upper arm responsible for extension of the elbow joint.