Question

A wildlife researcher weighed all the raccoons that were trapped in suburban neighborhoods before they were released back into the wild. The researcher used this data to conclude that the raccoons in the state were getting heavier.

What error did the researcher make?
The sample is biased because it only weighed raccoons that were trapped in suburban neighborhoods.
The researcher should not have released the raccoons back into the wild.
The sample is biased because the averages of the weights were not calculated.
The researcher should have weighed other animals besides raccoons.

Answer 1

C. because he needs a control group to actually say that they are getting bigger. He needs to now what the raccoon's weighted before the experiment. because it asks what error did the researcher make and A. says the sample so that one is out. B. and D. don't have anything that would help with the experiment.

Answer 2

Answer:

C

Explanation:

Edge 2020