Question

A population of 500 that experiences 55 births and 5 deaths during a one-year period. What is the intrinsic rate of natural increase for the population during the one-year period?

• A. 0.11/year
• B. 55/year
• C. 0.1/year
• D. 50/year

Answer 1

The correct option is C 0.1/year

To determine per capita birth or death rates, you simply divide the absolute number of births ("B") or deaths ("D") by the number in the population ("N").
Birth rate = $\frac{55}{500}$ = 0.11/year

Death rate = $\frac{5}{500}$ = 0.01/year

Rate of natural increase
= Birth rate – Death rate
= 0.11 – 0.01
= 0.1/year

So, the intrinsic rate of natural increase for the population during the one-year period = 0.1/year.