Question

Using six random samples, the average number of catfish in the samples was 5.7. If the total population of fish in the pond is 200, the proportion of catfish in the pond will be 5.7 / 20 = x / 200.What is the predicted number of catfish in the pond?A) 5.7B) 34C) 57D) 200

Answer 1

ANSWER

$C)57$

EXPLANATION

To find the predicted number of catfish in the pond, we have to solve for x in the given proportion:

$\frac{5.7}{20}=\frac{x}{200}$

Solve by cross-multiplying:

$\begin{gathered} x\cdot20=5.7\cdot200 \\ x=\frac{5.7\cdot200}{20} \\ x=57 \end{gathered}$

That is the predicted number of catfish in the pond.