Question

A person's blood pressure is measured to be 121 + 5 mm Hg. What is the percent uncertainty? percent uncertainty: Assuming the same percent uncertainty and the same measurement device, what is the uncertainty in a blood pressure measurement of 75 mm Hg? mm Hg uncertainity:

Answer 1

The percent uncertainty of the given blood pressure measurement is approximately 4.13%. The uncertainty in a blood pressure measurement of 75 mm Hg is approximately 3.10 mm Hg.

Step-by-step explanation:

In order to find the percent uncertainty, we can use the formula:

Percent uncertainty = (uncertainty / measured value) * 100%

For the given blood pressure measurement of 121 ± 5 mm Hg, the uncertainty is 5 mm Hg and the measured value is 121 mm Hg.

Plugging these values into the formula, we get:

Percent uncertainty = (5 / 121) * 100% ≈ 4.13%

Now, assuming the same percent uncertainty and the same measurement device, we can find the uncertainty in a blood pressure measurement of 75 mm Hg.

Using the same formula, we have:

Uncertainty = (percent uncertainty / 100%) * measured value

Plugging in the values, we get:

Uncertainty = (4.13% / 100%) * 75 mm Hg ≈ 3.10 mm Hg

Therefore, the percent uncertainty for the given blood pressure measurement is approximately 4.13% and the uncertainty in a blood pressure measurement of 75 mm Hg is approximately 3.10 mm Hg.