1. The problem statement, all variables and given/known data Students who are in the top 16% and top 2.5% will graduate with special honours. Where should the limits be set in terms of z-scores? Mean (xbar) = 2.7 Standard deviation (s) = 0.5 2. Relevant equations z = x - xbar / s and -1 to 1 = 68% of all grades -2 to 2 = 95% of all grades -3 to 3 = 99.7% of all grades (don't know if that's ^ relevant) 3. The attempt at a solution I tried multiplying 3 (the highest z score) by 0.84 (100 - 16) but that didn't seem to work. I know there's one thing I have to do before I use the z-score formula, but it's just not clicking.