In Simple Linear Regression,the Coefficient of Correlation R and the Least

question 177

Multiple Choice

In simple linear regression,the coefficient of correlation r and the least squares estimate b₁ of the population slope β₁:

• A)must be equal.
• B)must have the same sign.
• C)are not related.
• D)None of these choices.

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Definitions:

Capillaries

The smallest blood vessels in the body, which facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.

Aorta

The largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, distributing oxygen-rich blood to all parts of the body.

Sphygmomanometer

A device used to measure blood pressure, consisting of an inflatable cuff to restrict blood flow, and a mercury or aneroid manometer to measure the pressure.

Sphygm/o

A prefix related to the pulse, used in terms denoting something measured by the pulse.