Measurement accuracy issue
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The measurement range of a certain instrument is 0 to 2000. If it is known that the maximum error at the measurement point of 1000 is 0.2, then the accuracy of this measurement is ( ). (A) 0.01% (B) 0.02% (C) 10,000 (D) 5,000. Option A doesn’t seem to be the correct answer. What do you think? Is it right?
Isn’t the measurement accuracy the reciprocal of the relative error? The relative error here is 0.2 divided by 1000, which equals 0.0002. Therefore, the measurement accuracy should be 1 divided by 0.0002, which equals 5000. So why isn’t the answer 5000?
In the standard measurement terminology used in our country, there is no term for “measurement accuracy.” It’s either measurement precision or measurement accuracy; the conditions specified in this question are unclear, so this question is problematic by itself.
The answer is correct; Pig Brother explained it perfectly well: lol
I feel so dizzy; what’s the accuracy of this measurement? It feels so strange; wasn’t the precision specified? I was also going to mention the precision error