Question

the population of old town is 130,000. one hundred of the residents were randomly surveyed about the number of pets in their households. the residents of old town represent the entire dropdown. the 100 residents surveyed represent the dropdown.

Explanation:

In statistics, the entire group of interest is the population, and a subset of the population selected for study is the sample. Here, all residents of Old - Town are the population, and the 100 surveyed residents are the sample.

Answer:

The residents of Old Town represent the entire population.
The 100 residents surveyed represent the sample.