Izzy had an 81 and an 85 on his first two tests and believed that he did well enough on his final exam to keep his B average However when he got his grade he received a D He checked with his instructor and learned that the instructor had made a mistake by transposing the digits when he recorded the final exam grade If Izzy s incorrect average mean for the class was 68 what was his correct final exam score Izzy s correct final exam score is Type a whole number COLL