Like Most Characteristics of a Population, WAIS-IV Scores Are Distributed

Multiple Choice

Like most characteristics of a population, WAIS-IV scores are distributed in a bell or normal curve. Which of the following is an accurate characteristic of those types of curves?

A) Scores are evenly distributed across the population.
B) Scores are clumped around the midpoint.
C) The curve resembles an "S."
D) Scores are more common at the ends of the distribution.