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The numbers 2, 7, 9, 17 have frequencies x+6x+6, x+2x+2, x-3x−3 and xx respectively. If their mean is 5.28, find the value of xx.
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The numbers 2, 7, 9, 17 have frequencies x+6x+6, x+2x+2, x-3x−3 and xx respectively. If their mean is 5.28, find the value of xx.
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