an ornithologist who specializes in seagulls decides to estimate the seagull population in his local area…

an ornithologist who specializes in seagulls decides to estimate the seagull population in his local area. to do so, he traps 26 seagulls and marks them. after releasing the seagulls and waiting a bit, he traps 190 seagulls and observes that 13 of them are marked. to the nearest whole number, what is the best estimate for the seagull population?
Answer
Explanation:
Step1: Set up proportion
Let $x$ be the total seagull population. The proportion is $\frac{26}{x}=\frac{13}{190}$.
Step2: Cross - multiply
We get $13x = 26\times190$.
Step3: Solve for $x$
First, calculate $26\times190 = 4940$. Then $x=\frac{4940}{13}=380$.
Answer:
380