The correlation coefficient between the hours that a person is awake during a 24-hour period and the hours that same person is asleep during a 24-hour period is most likely to be

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The correlation coefficient is exactly -1.0 because there is a perfect inverse relationship between the hours awake and the hours asleep within a 24-hour period. If the number of hours awake increases, the number of hours asleep decreases by the same amount, and vice versa, indicating a perfect negative correlation.

The Correlation Coefficient Between the Hours That a Person Is