Answer:
1250
Explanation:
To know the size of the population, we will assume that the ratio is constant.
So, taking into account that 4 out of 50 deer has the mark and in total 100 deers have the mark, we can calculate the population as:
[tex]\frac{Mark}{Total}=\frac{4}{50}=\frac{100}{x}[/tex]Then, solving for x, we get:
[tex]\begin{gathered} \frac{4}{50}=\frac{100}{x} \\ 4\cdot x=50\cdot100 \\ 4x=5000 \\ \frac{4x}{4}=\frac{5000}{4} \\ x=1250 \end{gathered}[/tex]Therefore, there is a population of 1250 deers
