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Percentage error

What is the formula for % error? On the ocr a level spec it says (2 x absolute uncertainty / quantity measured) x 100, but everywhere else says to not multiple by 2 ?
Original post by idontlikeessays
What is the formula for % error? On the ocr a level spec it says (2 x absolute uncertainty / quantity measured) x 100, but everywhere else says to not multiple by 2 ?


wait i get it

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