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General question... You make several measurements of a number that will
be used in a calculation to obtain a final result. You can average the
measurements into one average measurement then use that average in the
calculation, or you can do the calculation with each measurement then
average the results of the calculation. Depending on the type of
calculation performed, and depending on the standard deviation of the
measurements, the two methods may produce almost identical results, or
may produce noticeably different results. If the results are different,
which method would you say is the correct or preferred method... average
first, or average last?