Poor Debater
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Wow! That's soooo good to know. But how do non-random errors accumulate?Non random errors are called bias or systematic errors,
And you can google "error" too! But how do non-random errors accumulate?
Years ago a coworker told me a story about counting paper money by weight.
It seemed that the treasury could count circulated paper money by weight, with some accuracy,
but not new money. His job was to find out why.
It turns out that with a stack of 50 bills, the error of too much or too little paper on the edge,
accumulates, and causes the error in the weight of a stack to be too large a range to count.
With circulated money, the edge widths are randomized.
I recall he said they decided not to use weight as a counting method for paper money.
Still doesn't answer the question, because the errors in money weight should random errors, not non-random errors.
So how do non-random errors accumulate?