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An alloy from the nbs was analyzed for its chromium content and the following results were obtained: 2.61, 2.66, 2.61, 2.70, 2.68% cr. if the nbs certified value is 2.69% cr, what is the percent error

Sagot :

Answer:

. An alloy from the National Bureau of Standards was analyzed for its chromium content and the following results were obtained: , , , , and Cr. Calculate the following if the NBS certified value is Cr.

A. MEAN

B. MEDIAN

C. RANGE

D. ABSOLUTE ERROR

E. STANDARD DEVIATION

H. PERCENT STANDARD DEVIATION