Which of the Following Is True of Variables

question 21

Multiple Choice

Which of the following is true of variables?

• A)Variables are the same as constants.
• B)All variables can be manipulated.
• C)Some variables can be either manipulated or measured.
• D)Variables only need conceptual definitions.

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Definitions:

Joint Frequency Distribution

A statistical representation showing the frequency of occurrences for combinations of two or more categories or variables.

Blood Type B

A blood group classification determined by the presence of antigen B on the surface of red blood cells.

Asthma Sufferers

Individuals who experience a chronic respiratory condition characterized by episodes of airway constriction, causing wheezing, shortness of breath, and coughing.

Nonsmoker

An individual who does not smoke tobacco products.