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

question 45

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 between 85 and 115?
Ii) Given a class with 25 students, what is the probability that the class' average IQ score is between 85 and 115?

• A) 0.3414, 0.0228
• B) 0.6826, 0.9772
• C) 0.6826, Approximately zero
• D) 1.0, 0.9544
• E) None of the choices are correct

---

Definitions:

Deliberately

Done consciously and intentionally; often implying careful thought or planning.

Reinforcement

In psychology, the process of encouraging or establishing a pattern of behavior by providing rewards or consequences.

Schedule

A plan for carrying out a process or procedure, giving lists of intended events and times.

Social Learning Theory

A theory that proposes people learn from observing others, with the environment, behavior, and cognition acting as primary factors influencing learning.