scientists captured, tagged, and released 20 crows as part of a research study. a week later, they counted…

scientists captured, tagged, and released 20 crows as part of a research study. a week later, they counted 250 crows, of which 10 had tags. to the nearest whole number, what is the best estimate for the crow population?

scientists captured, tagged, and released 20 crows as part of a research study. a week later, they counted 250 crows, of which 10 had tags. to the nearest whole number, what is the best estimate for the crow population?

Answer

Answer:

500

Explanation:

Step1: Set up proportion

Let $x$ be the total crow - population. The proportion is $\frac{20}{x}=\frac{10}{250}$.

Step2: Cross - multiply

$10x = 20\times250$.

Step3: Solve for $x$

$x=\frac{20\times250}{10}=500$.