Q. Carter measures a line to be 5.17ft long. If the actual measurement is 5ft, find Carter's relative error to the nearest thousandth.Answer:
Understand relative error: Understand the concept of relative error. Relative error is the absolute error divided by the actual measurement, often expressed as a percentage or in this case, to the nearest thousandth. The absolute error is the difference between the measured value and the actual value.
Calculate relative error: Calculate the relative error.Relative error = Actual ValueAbsolute errorRelative error = 5ft0.17ftRelative error = 0.034
Round relative error: Round the relative error to the nearest thousandth.Relative error rounded to the nearest thousandth = 0.034 (It is already at the thousandth place, so no further rounding is needed.)