the graph above shows the result of a recent survey in which more than 40,000 museum visitors of different age groups were asked how they prefer to experience museums. throughout all the age groups, audio tours are most preferred, followed by video clips, and then by computer interactions. compared to respondents in their 30s, respondents in their 60s are more than twice as likely to prefer audio tours.밑줄친 부분이 이해가 안가서 질문드립니다. 문법적으로 가능한 문장인가요?