A survey-inference question asks which population, or whole group, a sample can represent. Find who was eligible to be selected, then use the survey result to describe that group. Random selection doesn't reach people outside it, and a sample percentage is an estimate, not an exact percentage for everyone.
Hints
- Hint 1
A random sample uses chance to pick participants, but only eligible people can be picked. Who met the exercise requirement in this survey?
- Hint 2
The word most means more than half. Compare the survey's percentage with , then check whether the conclusion stays within the eligible group.
Step-by-step
Match the conclusion to the sampled group
Step 1Identify who could have been selected
No Desmos needed. The question is about who the survey represents, not a calculation. A sample is the group surveyed. The adults were randomly selected from people who reported exercising at least days each week, so that exercise group is the one the sample can represent.
- Step 2
Interpret the survey result
The reported exceeds . So a majority, meaning more than half, of the surveyed adults preferred fruit to a protein bar. Most describes the pattern the survey found; is not an exact figure for every larger group.
- Step 3
Keep the inference within that group
Because the adults were selected randomly within the exercise group, the result supports an estimate that most adults who exercise at least days a week prefer fruit as a post-workout snack. A random sample can represent the group it came from, not people outside that group. Choice B.