The Intelligence Quotient (IQ)test Scores for Adults Are Normally Distributed

question 38

Multiple Choice

The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population standard deviation of 15. What is the probability we could select a sample of 50 adults and find that the mean of this sample exceeds 104?

• A)0.0294
• B)0.9412
• C)Approximately 1
• D)0.9706

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Definitions:

Mental Faculties

The cognitive functions and capabilities of the mind, including perception, reasoning, judgment, and memory.

Disaffirm Contract

The legal act of declaring a contract void and freeing all parties from their obligations under it.

Minor

A person under the legal age of majority, which varies by jurisdiction, typically considered to be under 18 years old, and legally restricted in certain rights and responsibilities.

Cognitive Test

An assessment tool designed to measure mental processes such as memory, reasoning, attention, and understanding.