Problem 1-14: Solving for the percent uncertainty of 130±5 beats/min

Advertisements
Advertisements

PROBLEM:

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


Advertisements
Advertisements

SOLUTION:

The percent uncertainty can be calculated as

\begin{align*}
\%\:\text{uncertainty}\:& =\frac{\delta _A}{A}\times 100\% \\
&  =\frac{5\:\text{beats/min}}{130\:\text{beats/min}}\times 100\% \\
& =3.85\:\% \ \qquad \ \color{DarkOrange} \left( \text{Answer} \right) \\
\end{align*}

Therefore, the percent uncertainty is 3.85%.


Advertisements
Advertisements