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.

---

Definitions:

Heart Disease

A range of conditions affecting the heart or blood vessels, often related to atherosclerosis or plaque buildup in arterial walls.

Chronic Diseases

Long-lasting conditions that typically can be controlled but not cured and require ongoing medical attention.

Infectious Diseases

Diseases caused by pathogens such as bacteria, viruses, fungi, or parasites that can spread directly or indirectly from one person to another.

Chronic Diseases

Long-term medical conditions that are generally progressive and may be managed but not cured.