Rangers tagged and released 300 salmon into a Maine lake. A month later, fishermen on the lake were surveyed. They reported

catching 80 salmon, 12 of which had tags. Using this sample,

estimate the salmon population in the lake.

The estimate of the salmon population will be 2,000

Step-by-step explanation:

Rangers tagged and released 300 salmon into a Maine lake.

The fishermen reported catching 80 salmon of which 12 had tags

Thus we have 12/80 as a fraction of the tagged and released 300

 12/80 = 0.15 which is about 15% of the population of tagged and released 300.

To then estimate the salmon population, we have 300/0.15 = 2,000