Quote:
Originally Posted by DJDD
reading = 10.001
but accuracy states that true value could be anywhere from 9.996 to 10.006. Therefore, a precision of 0.001 is not helpful. In this case I am equating Acccuracy to error, which may not be strictly correct.
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You are quite right, in your way of thinking.
But if you have a standard (or something you know it is exactly 10.000) then you can determine what the error or gauge is, and account for it in any future measurement. Then, a precision (I would rather use term "resolution") of 0.001 will become useful.
However, in our case, I believe the stated resolution (number of digits) is more a marketing thing.. so not very useful in reality.