The Human Sleep Cycle Repeats Itself About Every

question 715

Multiple Choice

The human sleep cycle repeats itself about every

• A)30 minutes.
• B)90 minutes.
• C)2 1/2 hours.
• D)4 hours.

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Definitions:

Standard Deviation

Standard deviation is a statistical measure quantifying the amount of variation or dispersion from the average in a set of data.

Control Limits

The boundaries in a control chart within which a process metric is considered to be in a state of control; exceeding these limits signals a potential problem or variability.

Sample Range

The difference between the largest and smallest values in a statistical sample, used as a measure of statistical dispersion or variability.

Sample Size

The number of observations or data points that are selected from a larger population for the purpose of statistical analysis.