0 Question 5 v 5/0/20 pts '03 819 Details Student scores on Professor Combs' Stats final exam are normally distributed with a mean of 76 and a standard deviation of 6.6 Find the probability of the following: 1'\"'(use 4 decimal places)\" a.) The probability that one student chosen at random scores above an 81. I: b.) The probability that 20 students chosen at random have a mean score above an 81 . C] c.) The probability that one student chosen at random scores between a 71 and an 81. [j d.) The probability that 20 students chosen at random have a mean score between a 71 and an MC] n..-..a.:..... I|-I.... D An.._......._