SOLUTION: A class of 12 students takes an exam and the mean of their score is 71. A student takes the exam late and scores 92. After including the new score, what is the mean score for all 1

Question 870224: A class of 12 students takes an exam and the mean of their score is 71. A student takes the exam late and scores 92. After including the new score, what is the mean score for all 13 exams ?
Answer by lenny460(1073) (Show Source): You can put this solution on YOUR website!
A class of 12 students takes an exam and the mean of their score is 71. A student takes the exam late and scores 92. After including the new score, what is the mean score for all 13 exams ?
12 * 71 = 852
852 + 92 = 944
Therefore:
944 / 13 = 72.6

Answer:
72.6

lennox obuong
algebra tutor

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