The distribution of the annual incomes of a group of middle

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The distribution of the annual incomes of a group of middle management employees approximated a normal distribution with a mean of $39,924 and a standard deviation of $836. About 60 percent of the incomes lie between what two incomes? 38022 and 41826 38222 abd 41626 38422 and 41426 39222 and 40626

Reference no: EM13624146

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