What May NOT Be Said About the Mean of a Discrete

question 1

Multiple Choice

What may NOT be said about the mean of a discrete random variable x?

• A) It is denoted by.
• B) It is the middle value of its probability distribution.
• C) It 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) It is correctly described by both (a) and (b).

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Definitions:

Unconscious Awareness

The state of having processes in the mind that occur without conscious perception, influencing thoughts, feelings, or actions.

Id

A component of personality in psychoanalytic theory, it represents the instinctual drives and is the source of basic impulses and desires.

Ego

The part of the psyche in psychoanalysis that deals with reality, operating on the reality principle and mediating between the desires of the id and the morals of the superego.

Superego

In Freudian psychoanalysis, the part of a person's mind that acts as a self-critical conscience, reflecting social standards learned from parents and teachers.