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:

Conservation

A principle in cognitive development where a child recognizes that quantity does not change with physical rearrangement.

Theory of Mind

The skill to recognize and assign mental states such as beliefs, intentions, desires, imaginings, and understanding to oneself and others, while also comprehending that others possess their own unique beliefs, desires, and intentions that may not align with one's personal views.

Object Permanence

The awareness that things still exist even if they are not currently being perceived through sight, hearing, touch, smell, or any other sensory method.

Egocentrism

A cognitive bias where an individual is unable to see a situation from another person's point of view.