Please use the information below to answer this question: A group of 80 students took a statistics exam and the following scores were recorded: 68 84 75 82 68 90 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95 78 63 72 66 96 79 65 74 77 95 85 78 86 71 78 78 62 80 67 69 60 76 62 71 75 82 89 67 73 73 74 79 65 81 76 72 75 61 97 57 63 68 83 76 75 53 85 94 75 78 88 77 60 What is the average of all scores? (Calculate to the second decimal)