The Expected Value (Mean) of a Binomial Variable Is 15

question 84

Multiple Choice

The expected value (mean) of a binomial variable is 15. The number of trials is 20. The probability of "success" is:

• A).25
• B).50
• C).75
• D).30

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Definitions:

Frequency

The rate at which a recurring event happens in a given period of time.

Intensity

The degree of strength, force, or energy with which a feeling, phenomenon, or condition is expressed or occurs.

Duration

The length of time that something continues or exists, often used to describe the time span of events or conditions.

Transtheoretical Model

A model in psychotherapy that assesses an individual's readiness to act on a new healthier behavior, and provides strategies, or processes of change to guide the individual through the stages of change to Action and Maintenance.