In a population pyramid, what does the X-axis represent?

In a population pyramid, what does the X-axis represent?

• A. Population growth rate
• B. Amount of population
• C. Gender distribution
• D. Age groups

Answer: (B)

In a population pyramid, the horizontal axis shows how many people are in each age group. Each bar’s length equals the size of that age group, usually measured in counts or as a percentage. The vertical axis lists the age groups themselves, from youngest to oldest. The two sides of the pyramid indicate gender, with one side for males and the other for females. So the X-axis is all about the amount of population in each age group, not the growth rate, gender split by itself, or the age groups (which are shown on the vertical axis).

In a population pyramid, the horizontal axis shows how many people are in each age group. Each bar’s length equals the size of that age group, usually measured in counts or as a percentage. The vertical axis lists the age groups themselves, from youngest to oldest. The two sides of the pyramid indicate gender, with one side for males and the other for females. So the X-axis is all about the amount of population in each age group, not the growth rate, gender split by itself, or the age groups (which are shown on the vertical axis).