cohort study of alcohol use and academic performance was conducted in an undergraduate student population over 3 years. There were 2,000 students in the study. Of the 1,450 who drank alcohol (exposed), 872 displayed significantly reduced academic performance on standardized tests. Of the 550 students who didn't drink alcohol (unexposed), 124 showed reduced academic performance on standardized tests. What is the risk ratio in this study for drinkers compared to non-drinkers