The definition "A smooth surface is 'level' if and only if a marble placed on any part of the surface doesn't roll" is an example of:
A) A definition by genus and difference.
B) An operational definition.
C) A lexical definition.
D) A definition by subclass.
E) A stipulative definition.

Question

Quizplus · Accepted Answer

The definition is demonstrating how to "operate" or test whether a surface is level or not by placing a marble on it and observing if it rolls or not. This is an example of an operational definition.

The Definition "A Smooth Surface Is 'Level' If and Only