The Intelligence Quotient (IQ) Test Scores Are Normally Distributed with a Mean

question 71

Multiple Choice

The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. You enrolled in a class of 25 students. What is the probability that the class' average IQ exceeds 130?

• A) 0.0228
• B) 0.9772
• C) Approximately zero
• D) 0.9544

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Definitions:

Nucleic Acids

Biopolymers essential to all known forms of life, which carry genetic information in cells, primarily in the form of DNA and RNA.

Genetic Information

The set of instructions found in DNA and RNA that dictates the physical and functional characteristics of an organism.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide from the body to the lungs for exhalation.

Organic Groups

Clusters or families of organic compounds sharing common characteristics or structural features, often categorized by their functional groups.