Please help me determine these measures of relative position as I don't fully understand them. Thank you!

3. The following are the test scores of 60 students. 83 86 88 86 82 81 93 90 88 75 86 85 91 76 79 90 90 82 79 89 76 91 83 88 90 79 88 76 89 84 89 91 80 88 76 90 80 78 85 92 78 81 91 81 81 77 86 81 82 95 91 87 77 88 90 84 92 86 87 81 a. Determine Plo b. Peter is an examinee in the test, his percentile rank is 97. What is his score? 4. Using the data below, determine the indicated quartile. 76 79 80 80 81 81 82 82 83 83 83 84 84 84 84 85 85 85 85 85 86 86 86 86 86 86 87 87 87 87 88 88 88 89 90 91 91 92 93 96 a. Q1 b. Q2 c. Q31. Convert the following to its corresponding z-score. a. =10; 0 =1; x =8; z =? b. u = 10; 0 =1; x =12; 2 =? C. H = 54; 0 = 2.5; x - 55.25; 2 =? d. p = 54; 0 = 2.5; x = 59; 2 =? e. ut = 26.5; 0 = 1.5; x = 28.5; 2 =? f. u = 26.5; 0 = 0.5; x = 26.5; = =? 2. Using the data below, determine the indicated percentile. 76 79 80 80 81 81 82 82 83 83 83 84 84 84 84 85 85 85 85 85 86 86 86 86 86 86 87 87 87 87 88 88 88 89 90 91 91 92 93 96 a. P36 b. PT7 c. P50 d. P95