paragraph of Section 6.1 discusses “time-averaged values ” and being able to divide the “instantaneous values by the square root of the number of samples used. ” It goes on to say, “The RSS calculation can then be made. ” I would really appreciate an explanation of what these two paragraphs in Section 6.1 mean. I have not found any place where the error or accuracy of equipment can be divided by the square root sum of the square calculation. It would seem that all one would have to do to increase the number of samples taken. That does not seem to be correct, so I am confused. I would very much like to see a write-up on the two paragraphs, and if possible, the proof of these statement, including an example of how they can be used for calculating the system accuracy for a meteorological system. I have discussed this matter with other engineers, both at my plant and at others, and have found no one who can explain, with confidence, what the paragraphs mean. Response: This response addresses the assertion contained in ANSI/ANS-2.5-1984 that those parts of the total error that are random can be from their instantaneous value b
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