*On the old exam in 2007, 15 out of 38 students scored 20 or higher. On this new, slightly more difficult exam, 30 out of 50 students scored 20 or more. | *On the old exam in 2007, 15 out of 38 students scored 20 or higher. On this new, slightly more difficult exam, 30 out of 50 students scored 20 or more. |