A Polynomial Trend Model That Only Allows One Change in the Direction

question 59

Multiple Choice

A polynomial trend model that only allows one change in the direction of a series is known as a(n) ________.

• A) exponential trend model
• B) linear trend model
• C) cubic trend model
• D) quadratic trend model

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Definitions:

Chordate Group

A large group of animals that, at some stage in their development, possess a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail.

Bony Fishes

Fish that have skeletons primarily composed of bone tissue, as opposed to cartilaginous fishes; this group includes the vast majority of current fish species.

Placoderms

A group of extinct jawed fishes.

Extinct

The state in which a species no longer exists anywhere on Earth, often due to environmental changes, predation, or human activities.