A class of 10 students took a math test, and their scores were recorded as follows: 85, 90, 78, 92, 88, 76, 95, 89, 84, and 91. However, the teacher made an error in recording one of the scores and it should have been recorded as 86 instead of 76. What is the correct average score of the class after this adjustment? Let's think step by step and output the final answer within \boxed{}.
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