Question

State whether the data are best described as a population or a sample. To estimate size of trout in a lake, an angler records the weight of 11 trout he catches over a weekend.

Answer 1

Sample

Explanation:

Given that to estimate size of trout in a lake, an angler records the weight of 11 trout he catches over a weekend.

Hence it is implied that to assess the weight of trouts in general i.e. the whole population he draws a random sample of 11 trouts caught over a week end. He believes that this sample represents the whole population and hence some measured can be estimated from sample statistics.

Thus the data of 11 trouts taken is a sample here