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26 December, 05:59

Determine the mean of the numbers 7, 5, 5, 2, 8 and 7. if two additional numbers 2 and x, reduce the mean by 1, find x

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  1. 26 December, 07:11
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    (7 + 5 + 5 + 2 + 8 + 7) / 6 = 34/6 = 5.67

    (34 + 2 + x) / 8 = 5.67 - 1

    (36 + x) / 8 = 4.67

    36 + x = 4.67 * 8

    36 + x = 37.36

    x = 37.36 - 36

    x = 1.36
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