MEAN is the measure of central tendency; also called the average. It is calculated by the sum of the data points divided by the number of data points.
COST ROLLUP is a determination of all cost elements within total cost. A cost rollup will normally but not always allow for the dissection of cost by material by a where used chain to the individual component, labor by operation and overheads applied. See COST IMPLOSION.
OFFSOURCE, slang, is to outsource to an offshore location to primarily save on the cost of labor. See OUTSOURCE.
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