Which One of the Following Is Always True for Two

question 5

Multiple Choice

Which one of the following is always true for two events, A and B?

• A) If A and B are independent, they are also mutually exclusive.
• B) If A and B are dependent, they are also mutually exclusive.
• C) If P(A / B) = P(AB), A and B are independent.
• D) If A and B are mutually exclusive, then AB can never occur on the same trial of an experiment.
• E) All of these.

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Definitions:

Somnambulism

Also known as sleepwalking, a disorder that involves getting up and performing activities while in a state of sleep.

Drug Therapy

The use of prescribed pharmaceuticals to treat or manage mental health conditions or diseases.

Depressive Disorders

A category of mood disorders that involves persistent and significant feelings of sadness and despair.

Sleep Apnea

A sleep disorder characterized by episodes of cessation of breathing (apnea) that last at least 10 seconds. Diagnosis requires that there be at least five such episodes per hour of sleep.