A sample of the 2011 MTF survey suggests that adolescents are divided in terms of their attitudes toward others trying marijuana at least once. In fact, 49.3% of the 1,202 respondents who answered the question reported that they don't disapprove of others trying marijuana at least once. Estimate at the 95% and 99% confidence levels the proportion of all adolescents who don't disapprove of others trying marijuana at least once.