Categorical Data

question 5

Multiple Choice

Categorical data

• A) must be numeric.
• B) must be nonnumeric.
• C) cannot be numeric.
• D) may be either numeric or nonnumeric.

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Definitions:

Prefrontal Cortex

The prefrontal cortex is a region of the brain associated with decision-making, cognitive behavior, personality expression, and moderating social behaviour.

Stage 1 Sleep

The initial phase of the sleep cycle, characterized by light sleep and ease of awakening.

Slow-Wave Sleep

A deep stage of sleep characterized by low-frequency, high-amplitude brain waves, associated with physical and mental restoration.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness, often referred to as the "sleep hormone."