A Test of Independence Is to Be Performed

question 201

Multiple Choice

A test of independence is to be performed.The table has 4 rows and 5 columns.What would the degrees of freedom be?

• A)20
• B)15
• C)12
• D)9

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Definitions:

Locked Cabinet

A secure storage unit designed to prevent unauthorized access, often used for storing sensitive or valuable items.

Nitrile Gloves

Protective gloves made from nitrile rubber, resistant to many chemicals and used especially in the medical and chemical fields.

Exhaust Extraction System

A ventilation system used to capture and remove exhaust gases from a garage, workshop, or other enclosed spaces.

Creeper

A low, wheeled platform on which a person lies to move easily under vehicles for inspection or repair.