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## Main Question or Discussion Point

Hi,

I've been studying uncertainty in measurement. I'm not sure how to decide if the uncertainty of a given measurement should be ±.01 or ±.02 or ±.03, and so forth. I understand that the number of decimal places in the uncertainty calculation should correspond to the number of decimal places in the measurement, but I am not sure as to when I should decide whether the uncertainty contains a 1, 2, 3, and so forth.

Thanks,

I've been studying uncertainty in measurement. I'm not sure how to decide if the uncertainty of a given measurement should be ±.01 or ±.02 or ±.03, and so forth. I understand that the number of decimal places in the uncertainty calculation should correspond to the number of decimal places in the measurement, but I am not sure as to when I should decide whether the uncertainty contains a 1, 2, 3, and so forth.

Thanks,