A student is using a graduated cylinder to meas... - JAMB Mathematics 2023 Question
A student is using a graduated cylinder to measure the volume of water and reports a reading of 18 mL. The teacher reports the value as 18.4 mL. What is the student\'s percent error?
2.17%
1.73%
2.23%
1.96%
The percent error is calculated using the formula:
\[ \text{Percent Error} = \left| \frac{\text{Measured Value} - \text{Accepted Value}}{\text{Accepted Value}} \right| \times 100 \]
Let's calculate the percent error using the given values:
\[ \text{Percent Error} = \left| \frac{18 - 18.4}{18.4} \right| \times 100 \]
\[ \text{Percent Error} = \left| \frac{-0.4}{18.4} \right| \times 100 \]
\[ \text{Percent Error} \approx 0.021739 \times 100 \]
\[ \text{Percent Error} \approx 2.174 \%\]
Rounded to two decimal places, the percent error is approximately \(2.17\%\).
Therefore, the correct answer is 2.17\%
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