1. Most people take MCAT in Aug. instead of April- True. 2. It's best to take MCAT only once and receive a satisfying grade- True. 3. People who score better will have greater chance falling into this category- taking MCAT only once. 4. derive from (3), people who score less will likely to take MCAT multiple time. Conclude from above 4 statements, there is a higher percentage of people who take MCAT in Aug. score better. Since every test term, grades are curved, it's therefore easier to achieve score X in Apr. than in Aug.