When Two Variables Have a Negative Correlation

question 13

Multiple Choice

When two variables have a negative correlation,

• A)when the x-variable decreases,the y-variable decreases.
• B)when the x-variable decreases,the y-variable increases.
• C)when the x-variable increases,the y-variable increases.
• D)More than one of the above is correct.

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Definitions:

Rotary Motion

Movement in a circular path, revolving around an axis or center point.

Pressure Angle

The angle at which force is applied to the teeth of gears in mesh, affecting efficiency and strength of the gear teeth.

Radial Distance

The measure from the center of a circle to its perimeter, relevant in various contexts, including geometry and mechanical design.

Mating Tooth

In gear terminology, a tooth on one gear that engages with a corresponding tooth on a mating gear to transmit motion.