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# Calculate the percent errors for Student C’s trials.$\begin{matrix} \text{ } & \text{Density} & \ {Error (g/cm^3 )}\\ \text{Trial 1} & \ {1.70 \mathrm{g} / \mathrm{cm}^{3}} & \text{ +0.11}\\ \text{Trial 2} & \ {1.69 \mathrm{g} / \mathrm{cm}^{3}} & \text{ +0.10}\\ \text{Trial 3} & \ {1.71 \mathrm{g} / \mathrm{cm}^{3}} & \text{ +0.12}\\ \text{Average} & \ {1.70 \mathrm{g} / \mathrm{cm}^{3}} & \text{ }\\ \end{matrix}$

Solutions

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Trial 1: $\dfrac{\left|0.11 \right|}{1.59} \times 100=6.92\%$

Trial 2: $\dfrac{\left|0.10 \right|}{1.59} \times 100=6.28\%$

Trial 3: $\dfrac{\left|0.12 \right|}{1.59} \times 100=7.55\%$

The error can be found from :

percent error$=\dfrac{\left|error \right|}{accepted value}\times 100$

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