If a Qualitative Variable Has C Categories, Then Only (C

question 99

True/False

If a qualitative variable has c categories, then only (c - 1)dummy variables must be included in the regression model.

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Definitions:

Epithelium

A layer of cells covering the body surfaces, lining cavities, and forming glandular tissue.

Larynx

The hollow muscular organ forming an air passage to the lungs and holding the vocal cords; also known as the voice box.

Pharynx

The muscular tube in humans and other vertebrates connecting the mouth and nasal cavities to the esophagus and larynx; plays a key role in swallowing and breathing.

Vocal Cords

Bands of muscle tissue located in the larynx that vibrate to produce sound when air is expelled from the lungs, enabling speech and singing.