Jose is a student in a Statistics class. This semester, he took three exams. The Class Average and Standard Deviation of each exam is listed below. Exam #1: = 75 and = 10 Exam #2: = 67 and = 8 Exam #3: = 80 and = 5 (a) Jose scored a 70 on Exam #1. Find the z score. z = (b) Jose scored a 79 on Exam #2. Find the z score. z = (c) Jose scored an 85 on Exam #3. Find the z score. z = (d) Which exam did Jose do the best on relative to the rest of the class? Exam #1

Exam #2

Exam #3

We cannot determine this answer without knowing the full distribution of exam scores.