The Discrete Random Variable X Is the Number of Passengers

question 100

Multiple Choice

The discrete random variable X is the number of passengers waiting at a bus stop.The table below shows the probability distribution for X.What is the expected value E(X) for this distribution?

• A) 1.1
• B) 1.3
• C) 1.7
• D) 1.9

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Definitions:

Affect

An observable expression of emotion or feelings.

Negative Affectivity

A personality characteristic involving the predisposition to experience negative emotions and mood states frequently.

Functionalism

A theoretical framework in social sciences, particularly sociology and anthropology, focusing on the roles and contributions of societal institutions and norms in maintaining and organizing society.

Positive Affectivity

The tendency to experience and display positive emotions and moods, such as happiness, enthusiasm, and joy.