5. Gas volumetric determination of carbon in cast iron in four samples gave the following results, %
1.512 2.012 2.501 3.006
1.514 2.012 2.503 3.010
1.513 2.014 2.504 3.009
1.514 2.014 2.503 3.007.
Calculate the root mean square error of the analysis of several samples with different contents of the analyte

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