How Many Dummy Variables Will You Need to Include If

question 45

Multiple Choice

How many dummy variables will you need to include if you wish to develop a regression model in which the high school class standing is a qualitative variable with four possible levels of response?

• A) 8
• B) 5
• C) 4
• D) 3

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Definitions:

Human Brain

A complex organ in vertebrates responsible for processing sensory information, regulating vital functions, and enabling thought, emotion, and memory.

Nerve Cells

Specialized cells that transmit electrical signals throughout the nervous system, also known as neurons.

Neurons

Specialized neurons in the nervous system responsible for conveying information to other neurons, muscle cells, or glands.

Radioimmunoassay

A sensitive laboratory technique used to measure concentrations of substances, such as hormones, in a sample, using antibodies and radioactively labeled substances.