When Two Variables Have a Positive Correlation

question 59

Multiple Choice

When two variables have a positive correlation,

• A)they tend to move in opposite directions.
• B)they tend to move in the same direction.
• C)one variable will move while the other remains constant.
• D)the variables' values are never negative.

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Definitions:

Depth Perception

The ability to perceive the world in three dimensions (3D) and to judge the distance of objects.

Nasolacrimal Duct

The duct that allows tears to drain from the eye into the nasal cavity, playing a key role in tear drainage and nasal moisture.

Lacrimal Puncta

Small openings in the inner corners of the eyelids, serving as the entrance to the nasolacrimal ducts for tear drainage.

Tears

The liquid produced by lacrimal glands to lubricate the eyes, containing water, electrolytes, proteins, and lipids.