Question

A particular animal population has \(4400\) individuals with annual per capita birth rate of \(0.035\) and the annual per capita death rate of \(0.02\). Net change in the population size in a year will be _ _ _. (in integer)

Hint:

Population growth rate is calculated using: \[ \Delta N=(b-d)N \] where \(b\) is birth rate and \(d\) is death rate.

Answer 1

Correct Answer: 66

Step 1: List the numbers.
Population $N = 4400$, birth rate $b = 0.035$, death rate $d = 0.02$ per individual per year.

Step 2: Net per capita rate.
The growth per individual is $b - d = 0.035 - 0.02 = 0.015$.

Step 3: Scale up to the whole group.
\[ \Delta N = (b-d)N = 0.015 \times 4400 \]

Step 4: Compute.
\[ \Delta N = 66 \] The population grows by $66$ in the year.

Step 5: Answer.
\[ \boxed{66} \]