Final answer:
To calculate the percentage error of volume measurements, the average measured volume is compared to the actual volume, the absolute error is determined, and then converted into a percentage error .The percentage error is approximately 15%.
Step-by-step explanation:
To find the percentage error, we need to compare the measured volume to the actual volume. The actual volume is 34.1 mL, and the measured volumes are 29.3 mL, 34.7 mL, 27.9 mL, 30 mL, 32.6 mL, and 31.5 mL.
We can calculate the percentage error using the formula:
Percentage Error = (|Measured Value - Actual Value| / Actual Value) x 100
Substituting the values, we get:
Percentage Error = (|29.3 - 34.1| / 34.1) x 100
= 15.22%
As the question asks us to round the answer to the nearest whole number, the percentage error is approximately 15%.