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Define the terms accuracy and precision. Give examples which illustrate the difference between terms.

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Chemistry

Define the terms accuracy and precision. Give examples whichillustrate the difference between terms.

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3.6 Ratings (334 Votes)

* Precision refers to the closeness of various measurements for the same quantity.

* Accuracy is the agreement of a particular value to the true value of the result.

EX: For a true value of 2.00 g.

                         1                           2                     average

Student A       1.95                        1.93         1.94

Student B       1.94                       2.05           1.995

Student C        2.01                     1.99            2.00

Student A: Measured values are precise but not acuurate

StudentB : Not precise and not accurate

Student: Precise and acuurate
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