Ch. 4 & 5 MAT 120 Test - C webassign.net/web/Student/Assignment-Responses/submit?dep=29043408&tags=autosave#/question4960687_1 YouTube V Maps Suppose that the distribution of scores on an exam can be described by a normal curve with mean 100. The 16th percentile of this distribution is 70. (Use the Empirical Rule.) (a) What is the 84th percentile? (b) What is the approximate value of the standard deviation of exam scores? (c) What z score is associated with an exam score of 55? (d) What percentile corresponds to an exam score of 160? O 0.15 O 0.3 O 2.5 O 13.5 O 34 O 50 O 68 O 86.5 O 97.5 O 99.7 O 99.85 (e) Do you think there were many scores below 10? Explain. A score of 10 is standard deviations below the mean, and so the percentage of scores below 10 would be approximately -Select