The mass of an object was measured eight times on a balance readable to +1 g, and the followng values were recorded: (298 + 1)g. (311 + 1)g, (302+ 1)g, (312 + 1)g, (313 ± 1)g, (317 + 1)g, (302 + 1)g, and (331 + 1)g. Find the final measurement Om.
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