Bailey Is Hooked Up to an Electroencephalograph (EEG) in a Sleep

question 233

Multiple Choice

Bailey is hooked up to an electroencephalograph (EEG) in a sleep lab. She has been asleep for just over an hour now, and her EEG is showing low-amplitude brain-wave patterns. Her breathing and pulse rate are irregular, and her eyes are darting back and forth beneath her closed eyelids. The researcher who is monitoring Bailey's sleep can conclude that Bailey

• A)has just entered REM sleep.
• B)has just entered stage 4 sleep.
• C)is experiencing sleep anoxia and needs immediate medical attention.
• D)suffers from a sleep disorder.

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Definitions:

Standard Deviation

Standard deviation is a measure of the amount of variation or dispersion of a set of values; a low standard deviation indicates that the values tend to be close to the mean, while a high standard deviation indicates that the values are spread out over a wider range.

Mean High Temperature

The average of the highest temperatures recorded over a specific period.

Normal Distribution

A bell-shaped probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Standard Deviation

Standard Deviation is a measure of the amount of variation or dispersion present in a set of values, indicating how spread out the values are.