Trout are bred in a tank as fish for restaurants.

Twenty trout are caught and each is tagged through the tail then released back into the tank.

A week later, thirty trout are caught and it is found that two of them have a tail tag.

Based on this evidence alone, what estimate can be made of the total number of trout in the tank?

A) 100 B) 300 c) 600 D) 1,200

Question

Trout are bred in a tank as fish for restaurants.

Twenty trout are caught and each is tagged through the tail then released back into the tank.

A week later, thirty trout are caught and it is found that two of them have a tail tag.

Based on this evidence alone, what estimate can be made of the total number of trout in the tank?

A) 100 B) 300 c) 600 D) 1,200

aravindg · Answer

Hi there ! Welcome to Openstudy !!

kropot72 · Answer

10% of the tagged trout are found in a sample of 30 fish. Therefore the estimated number of trout in the tank is$$\frac{30}{0.1}=you\ can\ calculate$$