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6 August, 23:46

What's the mean of 8 15 9 7 4 5 9 11?

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Answers (2)
  1. 7 August, 00:04
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    Add all the numbers together and you get 63.

    divide 63 by the amount of numbers in the sequence. (7) After that you get 9.
  2. 7 August, 00:09
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    Add it all up. Divide by number of terms. 68/8 = 8.5
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