The Limitation of Covariance as a Descriptive Measure of Association

question 27

Multiple Choice

The limitation of covariance as a descriptive measure of association is that it

• A) only captures positive relationships
• B) does not capture the units of the variables
• C) is very sensitive to the units of the variables
• D) is invalid if one of the variables is categorical
• E) none of these options

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Definitions:

Ligaments

Bands of tough, elastic connective tissue that connect bones together and provide support to joints.

Spiracle

An external respiratory opening in some animals, particularly insects, spiders, and some fish.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, often considered a greenhouse gas contributing to global warming.

Bicarbonate Ions

Chemical ions (HCO3-) that act as a buffering agent in blood, maintaining pH balance by neutralizing acids.