Question

question 2
\demographic weighting targets come from the american community survey.\ in the context of polling, this is related to a samples...
representativeness
error margin
randomness
descriptiveness

Explanation:

In polling, demographic weighting (using American Community Survey data) aims to make a sample match the population's demographic characteristics, which is about a sample's representativeness. "Randomness" is about sampling method, "Error margin" is about precision, and "Descriptiveness" is about describing data, not matching population.

Answer:

A. Representativeness