Data Gathered from Various Telecommunication Companies (E

question 19

Multiple Choice

Data gathered from various telecommunication companies (e.g.cable, phone, internet service providers) and utility companies (electric, fuel, etc.) were merged into
One data warehouse.Below are some of the variables for which data were collected.
Which is/are demographic?

• A)Number of residents in household.
• B)Gender of head of household.
• C)Monthly electricity usage.
• D)Both A and B

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Definitions:

REM Sleep

A stage of sleep characterized by rapid eye movements and is closely associated with vivid dreaming.

Postural Muscles

Muscles that are primarily responsible for maintaining posture and balance, enabling the body to stand upright and perform movements efficiently.

Brain Activity

The functioning and neural processes occurring within the brain, often studied through imaging techniques.

REM Sleep

A phase of sleep characterized by rapid eye movements, dreams, and paralysis of motor systems.