Answer:
b. number of populations/land area
Step-by-step explanation:
The formula to calculate population density is a very simple one, we just need the information about the land area and the number of population, and the formula is:
population density = number of populations / land area
Practically, what we do to get to the result is take the number of populations and divide it by the land area, so we get the population density.
Example:
467,012 people live in a land area of 14,111 km²
467,012 / 14,111 = 33.096
So we have 33.096 people living in one square kilometer.