Audrey measured a line to be 8.7 inches long. If the actual length of the line is 8.4 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?Answer: ______%
Q. Audrey measured a line to be 8.7 inches long. If the actual length of the line is 8.4 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?Answer: ______%
Understand percent error: Understand the concept of percent error. Percent error is a measure of how inaccurate a measurement is, compared to the true value. The formula for percent error is: Percent Error = (∣Measured Value−True Value∣/True Value)×100%
Identify values: Identify the measured value and the true value from the problem.The measured value is 8.7 inches, and the true value is 8.4 inches.
Calculate absolute difference: Calculate the absolute difference between the measured value and the true value.Absolute difference = ∣Measured Value−True Value∣ = ∣8.7−8.4∣ = 0.3 inches
Calculate percent error: Calculate the percent error using the formula.Percent Error = (Absolute difference/True Value)×100%Percent Error = (0.3/8.4)×100%
Perform division and multiplication: Perform the division and multiplication to find the percent error.Percent Error = (0.3/8.4)×100%≈3.5714%
Round percent error: Round the percent error to the nearest tenth of a percent.Percent Error ≈3.6%