The following data were obtained for repetitive mass measurements of a 1.004-g standard mass on a…

The following data were obtained for repetitive mass
measurements of a 1.004-g standard mass on a top-loading balance:

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(a) Assuming the noise is random, calculate the
signal-to-noise ratio for the balance.

(b) How many measurements would have to be averaged to
obtain a S/N of 500?

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