Percentage Error

The correct formula for calculating percentage error?

• Percent Error (%) = |Accepted value – experimentalValue| x100

  Accepted Value

• Percent Error (%) = |experiment value – Accepted Value| x100

  Accepted Value

• Percent Error (%) = |experiment value | x100

  Accepted Value

• Percent Error (%) = |accepted value – experimentalValue| x100

  experimental Value

As the result of experimental work, a student finds the density of a liquid to be 30 g/cm3. The known density of that liquid is 25 g/cm3. What is the percent error of this student’s work?

• 200

• 20

• 2

• 0.02

Tags

CCSS.6.RP.A.3C

The melting point of potassium thiocyanate determined by a student in the laboratory turned out to be 105 C. The accepted value of this melting point is 35 C. What is the percent error in this reading?

• 20

• 2

• 200

• 0.02