90+84+65+71+90+74 = 474
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The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456
The sum of 622 and 84 is 706.
68+84=148 ------> 148/2=74 74 is the average.
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87
It is: 84/74 times 100 = 113.5% rounded to one decimal place