When Two Variables Have a Negative Correlation and the X-Variable

question 5

Multiple Choice

When two variables have a negative correlation and the x-variable decreases,

• A)the y-variable increases.
• B)the y-variable decreases.
• C)the y-variable stays the same.
• D)the x-variable can never be positive.

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Definitions:

AV Bundle

The bundle of His, which is a collection of heart muscle cells specialized for electrical conductivity that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches.

SA Node

Sinoatrial node, the heart's natural pacemaker, initiating the electrical impulses that set the rate and rhythm of your heartbeat.

AV Node

The atrioventricular node, a part of the cardiac conduction system that controls the heart rate by slowing the electrical current before it passes from the atria to the ventricles.

Pacemaker

A device implanted in the body that uses electrical impulses to regulate the beating of the heart or a natural group of cells in the heart that performs this function.