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6.856 + 7.923 + 8.135 = 22.914
22.914/3 = 7.638  <=== Mean score

Hope This Helps You!
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- Hannah ❤
AnimeBrainly

To find the mean score, add all the numbers together and divide by the amount of numbers there is.

6.856 + 7.923 + 8.135 = 22.914

Divide 22.914 by 3

22.914/3 = 7.638

7.638 is your answer

hope this helps