# Chem (Check)

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The accepted value of a length measurement is 200cm, and the experimental value is 198cm. Circle the letter of the value that shows the precent error of this measuerment.

a)2%
b)-2%
c)1%
d)-1%
is it b)-2%

No. What is 2/200 * 100?

Percent error = deviation/GAAT * 100

gAAT generally accepted as true. Now watch signs...deviation = measured - GAAT

• Chem (Check) -

200cm= 2

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