An Aptitude Test Has a Mean Score of 80 and a Standard

question 133

Multiple Choice

An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What proportion of tests has scores over 90?

• A) .9772
• B) .0228
• C) .9544
• D) .0456

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Definitions:

Superego

A component of Sigmund Freud's psychoanalytic theory, representing the ethical or moral conscience.

Defence Mechanism

Psychological strategies deployed by individuals unconsciously to protect themselves from anxiety arising from unacceptable thoughts or feelings.

Sublimation

The process of redirecting socially unacceptable impulses or urges into socially acceptable actions or behaviors.

Displacement

In psychology, a defense mechanism where an individual shifts negative feelings from their original source to a less threatening recipient.