Calculate the Expected Value of X for the Given Probability $$\begin{array} { c c c c c } x & 1 & 2 & 3 & 4 \\P ( X = x ) & 0.6 & 0.1 & 0.1 & 0.2\end{array}$$

question 23

Multiple Choice

Calculate the expected value of X for the given probability distribution. $$\begin{array} { c c c c c } x & 1 & 2 & 3 & 4 \\P ( X = x ) & 0.6 & 0.1 & 0.1 & 0.2\end{array}$$

• A) \(E ( X ) = 1.6\)
• B) \(E ( X ) = 2.1\)
• C) \(E ( X ) = 2.4\)
• D) \(E ( X ) = 1.9\)
• E) \(E ( X ) = 2.3\)

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Definitions:

Prognosis

A forecast or prediction about the likely outcome or course of a disease based on the individual’s condition and medical knowledge.

Adaptive Functioning

A person's ability to manage common demands of life and meet the standards expected for their age and cultural group, including social and practical skills.

Personal Distress

A psychological discomfort or anguish experienced as a response to stressful situations or emotional pain.

Social Norms

Unwritten rules that govern the expectations of social behavior in a group or society.