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According to the Chebyshev rule, at least what percentage of the observations in any data set are contained within a distance of 2 standard deviations around the mean?
Anhedonia
The reduced ability or inability to experience pleasure from activities usually found enjoyable.
Vegetative Signs
Symptoms primarily affecting the body's basic functions such as sleep, appetite, and energy level, often related to depression.
Euphoria
A feeling or state of intense excitement and happiness.
Major Depressive Disorder
A mental health condition characterized by persistent feelings of sadness, loss, or anger that interfere with daily activities.
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