Question

An infant’s pulse rate is measured to be 130±5 beats/min. What is the percent uncertainty in this measurement?

Answer 1

5 is 3.84 percent of 130. 

Answer 2

Percentage Uncertainty = 3.85 %

Step-by-step explanation:

Given

measurement A = 130 beats / min

Uncertainty in measurement δA = 5 beats / min

Solution

`Percentage Uncertainty = ( \delta A)/(A)* 100\\\\Percentage Uncertainty = (5)/(130) * 100\\\\Percentage Uncertainty = 3.85`