Which of the Following Situations Refers to a Chi-Square Test

question 89

Multiple Choice

Which of the following situations refers to a chi-square test of independence?

• A)when the marginal frequencies of both variables are random
• B)when one of the marginal frequencies for a variable is fixed
• C)when both of the variables have marginal frequencies that are fixed
• D)all of these

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Definitions:

Force Exerted

The physical pressure or effort applied to something.

Precapillary Sphincters

Circular muscles located at the entrance of capillaries that regulate blood flow into the capillary beds.

Capillaries

Microscopic blood vessels that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.

External Jugular Vein

A vein located on each side of the neck that drains blood from the face, neck, and scalp back to the heart.