A Discrete Random Variable X Can Assume Five Possible Values

question 121

Multiple Choice

A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probability distribution is shown below. Find the mean of the distribution. $$\begin{array} { c | c c c c c } \mathrm { x } & 2 & 3 & 5 & 8 & 10 \\\hline \mathrm { p } ( \mathrm { x } ) & 0.10 & 0.20 & 0.30 & 0.30 & 0.10\end{array}$$

• A) 5.0
• B) 5.5
• C) 5.7
• D) 5.6

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Definitions:

Conflict Theory

A social theory that views society as an arena of inequality that generates conflict and social change, emphasizing a materialist view of society, critical of the status quo.

Resentment

A feeling of bitterness or indignation resulting from unfair treatment or past wrongs.

Alienation

A condition in social relationships reflected by a low degree of integration or common values and a high degree of distance or isolation between individuals or groups.

Dramaturgy

A perspective in sociology that interprets social interactions as if they were part of a theatrical performance, where individuals present themselves in a way that is favorable to them.