ACCOUNTS RECEIVABLE LEDGER is the bookkeeping ledger in which all accounts for which cash assets owed to an organization is maintained.
WEIGHTED AVERAGE is one in which different data in the data set are given different "weights." Varying subjective assumptions are derived for determining the level of importance for each data category. For example, many teachers will use a "weighted average" when calculating a students grade in a course. A teacher might determine the final grade for the course by calculating that the test average is 60% of the grade, quiz average is 30% of the grade, and a single project is 10% of the grade.
SAFETY STOCK (SS) or security stock ensures that the item is available up to the pre-defined required service level, even when the re-ordered material arrives later then expected, or the fluctuations in demand during the lead-time cause the demand to be larger then expected. See also STOCK RESERVE.
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