Week 1 Assignment: Skewness and Standard Deviation Due Sunday by 11:59pm Points 10 Submitting an external tool Chemistry: 1 = Statistics: 2 = 2 Correct answers: 0.6 0.75 The Chemistry class had a mean exam score of u = 80 with a standard deviation of a = 5 . The z-score corresponding to Zachary's Chemistry exam score of x = 83 is Z= -M - 83 - 80 - = 0.6 5 The Statistics class had a mean exam score of u = 77 with a standard deviation of a = 4 . The z-score corresponding to Zachary's Statistics exam score of x = 80 is * - M _ 80 - 77 - = 0.75 4 FEEDBACK Content attribution Question Based on the z-scores calculated above for Zachary's Chemistry and Statistics exam scores, in which course did Zachary perform better, when compared to the rest of the class? Select the correct answer below: O Chemistry Statistics O O Zachary performed equally well on both exams. O There is not enough information for a comparison