What is the formula for calculating the mortality rate?

The mortality rate is defined as the frequency of deaths in a given population over a specified period. The correct formula for calculating the mortality rate is derived from the relationship between the number of individuals who die in a specific time frame and the total population at risk during that same period. Specifically, it is calculated as the number of individuals dying divided by the number of individuals in the population, typically expressed per 1,000 or 100,000 individuals to make the rate more understandable.

In this context, the provided choice accurately reflects this relationship, emphasizing that mortality is assessed based on deaths occurring within a defined segment of the population. This metric is vital for understanding population dynamics, estimating life expectancy, and evaluating the health status of a community or species.