To determine the population growth rate, we need to follow a structured approach:
1. Calculate the birth rate:
The birth rate is found by dividing the number of births by the total population. For a population of 1000 individuals with 100 births:
[tex]\[
\text{Birth rate} = \frac{\text{Number of births}}{\text{Total population}} = \frac{100}{1000} = 0.10
\][/tex]
2. Calculate the death rate:
The death rate is calculated by dividing the number of deaths by the total population. For a population of 1000 individuals with 200 deaths:
[tex]\[
\text{Death rate} = \frac{\text{Number of deaths}}{\text{Total population}} = \frac{200}{1000} = 0.20
\][/tex]
3. Calculate the population growth rate:
The population growth rate is obtained by subtracting the death rate from the birth rate:
[tex]\[
\text{Population growth rate} = \text{Birth rate} - \text{Death rate} = 0.10 - 0.20 = -0.10
\][/tex]
The equation that shows how to calculate the population growth rate correctly is the one where we subtract the death rate from the birth rate. Hence, the correct choice is:
B. [tex]\(0.10 - 0.20 = -0.10\)[/tex]
