Question Detail
Question
A set of experimental measurements yielded the following values: 2.45, 2.47, 2.46, 2.48, 2.45. If the true value is 2.50, what is the percent error?
Correct Answer
Option A is the correct answer.
Detailed Explanation
Mean = (2.45+2.47+2.46+2.48+2.45)/5 = 12.31/5 = 2.462. % error = |(2.462-2.50)/2.50| × 100% = (0.038/2.50)×100 = 1.52% = 0.0152 as decimal ≈ 0.016.
Hint
Calculate the mean, then % error = |(mean - true)/true| × 100%.