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

question 3

Multiple Choice

The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a
Standard deviation of 15.
i. What is the probability that a person would score 130 or more on the test?
ii. You enrolled in a class of 25 students. What is the probability that the class' average IQ exceeds
130?

• A) 0.0228, 0.4987
• B) 0.4772, 0.300
• C) 0.4772, 0.0026
• D) 0.0228, approximately zero

---

Definitions:

Painful Intercourse

Discomfort or pain during sexual activity, medically known as dyspareunia, which can have physical or psychological causes.

Proper Lubrication

The application of a substance (such as oil) to reduce friction between surfaces in motion, critical in machinery maintenance and bodily functions.

Low Sexual Desire

A decrease in the interest or desire for sexual activity, which can be influenced by psychological, physiological, or relational factors.

Sexual Desire

The psychological or emotional interest in sexual activity or objects, which can vary across different individuals.