Question #6 (12 points - 3 points each ) Scores on Professor Combs' Statistics Final Exams have a long term history of being normally. distributed, with a mean of u = 71 and a standard deviation of o = 7 a.) Find the probability that a single student will score above a 76 on the Final exam. b.) Find the probability that a single student will score between a 66 and 76 on the Final exam. c.) Find the probability that an entire class of 20 students will have a class average above a 76 on the exam. d) Find the probability that an entire class of 20 students will have a class average between 66 and 76 on the Final exam