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3 April, 11:41

Find the value of x such that the data set 31.7,42.8,26.4, x has a mean of 35

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  1. 3 April, 12:06
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    The answer is 39.1

    (31.7+42.8+26.4+x) / 4=35

    Multiply both sides by 4.

    100.9 + x=140

    Subtract 100.9 from both sides you get 39.1
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