• An individual measurement may be accurate or inaccurate, depending on how close it is to the true value.
  • The accepted value of a measurement is the true or correct value based on general agreement with a reliable reference.
  • The percent error is the absolute value of the error divided by the accepted value and multiplied by 100%.
  • For aluminum the accepted density is 2.70 g/cm3.
  • The experimental value is the value that is measured during the experiment.
  • The error of an experiment is the difference between the experimental and accepted values.
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