There are 800 total fish in the lake.
The percentage of Grass Carps in the sample is 61/200 = 0.305
Estimated number of Grass Carps in the lake = 0.305 * 800 = 244
Therefore, the estimated number of Grass Carps present in the lake when a sample of 800 fish is collected is 244.
Answer: 244
The table below shows the data for a random sample of fish that were collected from and later released into a lake:
Type of Fish Catfish Grass Carp Bluegill
Number of Fish 52 61 87
How many grass carps are estimated to be present if a sample of 800 fish is collected from the lake? (5 points)
122
148
244
348
1 answer