7. Inge recently took four different exams in four different courses. She found out the class results and her own results. On which test did Inge perform better, relative to the rest of the class? Determine the z-scores and then explain your answer. Class Results (%) Student Result Course Grade (%) z-score Mathematics 79 1.9 81 Biology 77 3.0 85 Basket Weaving 90 1.1 91 Bird Watching 87 1.9 91