What statement regarding age pyramids is accurate?
They show the distribution of wealth in a population
They provide insight into the future population structure
They only apply to developed countries
They are only useful for studying age-related diseases
Correct option (b)
Age pyramids, often called population pyramids, are visual representations of how many people are of each gender and age within a population. They typically consist of two bar graphs with the age categories on the x-axis and the percentage or number of people in each age category on the y-axis, one representing the male population and the other representing the female population.
Age pyramids are helpful for revealing trends in birth rates, mortality rates, and migration patterns, which can give insight into how the population will look in the future. A population pyramid with a high percentage of young individuals, for instance, suggests a high birth rate, whereas one with a high percentage of old people, for example, suggests a low birth rate and/or a high mortality rate.
Option b is the correct answer