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12.5,-10,-7.5,x; the mean is 11.5 find the value of X
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12.5,-10,-7.5,x; the mean is 11.5 find the value of X

User Jsta
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1 Answer

4 votes
(12.5 - 10 - 7.5 +/- x) / 4 = 11.5


in the end, x = +51
User Erfan Jazeb Nikoo
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