Passage Summary: Researchers surveyed the same group of people in Denmark twice, ten years apart, about banning cigarette ads. Their views stayed mostly the same, with a majority supporting at least some form of restriction.

Reasoning: A representative sample of 1,000 Danes showed stable opinions over ten years regarding cigarette advertising, with 31% favoring a ban, 38% favoring a partial ban, and 24% opposing a ban.

Analysis: When dealing with survey data, the most strongly supported inference usually comes from aggregating the numbers or noting the stability of the sample. Here, we see that 31% want a total ban and 38% want a partial ban; combined, that is 69% of the population supporting some level of restriction. Since the sample is representative and the opinions 'changed little,' we can reasonably infer that a majority of the general Danish population supported some form of advertising restriction throughout that decade. Look for a choice that reflects these combined percentages.