The Mean of a Discrete Random Variable X

question 45

Multiple Choice

The mean of a discrete random variable x:

• A) is denoted by
• B) is denoted by E(x), because it is the value of x one can expect to find on average by numerous repetitions of the random experiment that generates the variable's actual values
• C) is correctly described by both "is denoted by" and "is denoted by E(x), because it is the value of x one can expect to find on average by numerous repetitions of the random experiment that generates the variable's actual values"
• D) is always = 0
• E) is none of these

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Definitions:

True Value

The genuine or actual worth of an item, service, or financial instrument as determined by underlying characteristics and market conditions.

Valid Contract

An agreement between two or more parties that is enforceable by law and meets all the legal requirements.

Legality

The state or condition of being in accordance with the law; adherence to and conformity with legal statutes, rules, and standards.

Consideration

The benefit, interest, right, or value given to one party in exchange for some act or promise in a contract.