When one looks at the U. S. population over the last 70 years one finds that the proportion of ______ has remained relatively stable.
A) children
B) adolescents
C) middle-aged adults
D) old adults

Question

Quizplus · Accepted Answer

According to demographic data, the proportion of middle-aged adults (between 35-64 years old) has remained relatively stable over the last 70 years. The proportion of children and adolescents has decreased slightly, while the proportion of old adults has significantly increased due to the aging of the baby boomer generation.

When One Looks at the U