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30 June, 01:01

Assuming the same percent uncertainty and the same measurement device, what is the uncertainty in a blood pressure measurement of 71 mm Hg?

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  1. 30 June, 04:25
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    With a person's blood pressure is measured to be 120 ± 2 mmHg, it will be 1.2mmHg

    Explanation:

    What is missing in the question is the percentage of uncertainty.

    If we assume that a person's blood pressure is measured to be 120 ± 2 mmHg, the percent uncertainty is computed as:

    % uncertainty = 2mmHg/120mmHg x 100% = 1.7%

    So,

    The uncertainty in the blood pressure is = 1.7% / 100% * 71mmHg = 1.2mmHg
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