The mass of an object was measured eight times on a balance readable to +1 y, ainu lile 1)g. (311 + 1)g, (302 + 1)g, (312 ± 1)g, (313 + 1)g. (317 + 1)g, (302 + 1)g, and (331 + 1)g. What is the percentage uncertainty of the measurement × 100% 2 Select one: O a. 12.862 % O b. 1.286 % O C. 0.129 % O d. 0.013 %
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