Which of the Following Statements About a Discrete Random Variable

question 64

Multiple Choice

Which of the following statements about a discrete random variable and its probability distribution is true?

• A) Values of the random variable can never be negative.
• B) Negative values of f(x) are allowed if ∑f(x) = 1.
• C) Values of f(x) must be greater than or equal to zero.
• D) The values of f(x) increase to a maximum point and then decrease.

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Definitions:

Arrogance

An attitude of superior importance or presumption often manifested through an overbearing manner.

Conceitedness

An attitude of excessive pride in oneself or one’s achievements, often manifesting as arrogance or vanity.

Associative Network

A theory that suggests human memory is organized as a network of connected ideas, such that recalling one concept triggers the recall of associated concepts.

Linked Together

Connected or associated with each other in a sequence or relationship.