Question

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

Answer 1

Answer: The dolphin's population growth is 150% .

Explanation:

The birth rate of dolphins = $2.0=\frac{2.0\times 100}{100}=200\%$

The death rate of the dolphins =  $0.5=\frac{0.5\times 100}{100}=50\%$

Dolphin's population growth  = Birth rate - Death rate

= $200\%-50\%=150\%$

The dolphin's population growth is 150%.