The Expected Value of a Random Variable Is

question 52

Multiple Choice

The expected value of a random variable is

• A) the value of the random variable that should be observed on the next repeat of the experiment.
• B) the value of the random variable that occurs most frequently.
• C) the square root of the variance.
• D) None of these alternatives is correct.

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Definitions:

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant stimuli over time, allowing organisms to adapt to their environment.

Signal Detection Theory

A framework used to describe how stimuli are detected under uncertain conditions, focusing on the decision-making processes involved.

Signal Present

In signal detection theory, the condition in which the signal or target stimulus is indeed present.

Signal-Detection Theory

A framework for understanding how decisions are made under conditions of uncertainty, emphasizing the role of sensory processes and decision criteria.