The Expected Value of a Discrete Random Variable

question 80

Multiple Choice

The expected value of a discrete random variable

• A) is the most likely or highest probability value for the random variable.
• B) will always be one of the values x can take on, although it may not be the highest probability value for the random variable.
• C) is the average value for the random variable over many repeats of the experiment.
• D) is the value it is expected to assume in the next trial.

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Definitions:

Hallucination

A perception in the absence of external stimulus that has qualities of real perception.

Avolition

A symptom of various psychiatric disorders, characterized by a lack of motivation to initiate and complete tasks.

Long-term Amnesia

A significant loss of memory that extends over long periods, often resulting from brain injury or psychological trauma.

Schizophrenia

A chronic and severe mental disorder affecting how a person thinks, feels, and behaves, characterized by delusions, hallucinations, disorganized speech, and impaired cognitive function.