Use the fоllоwing infоrmаtion to аnswer the questions below Mаth History Your exam score = 65 Your exam score = 65 Mean = 60 Mean = 45 Standard deviation = 2 Standard deviation = 10 a. Which exam had more variation in the scores? Briefly explain and justify your answer b. In which class did you do relatively better than the rest of the class? Briefly explain and justify your answer.