Question

In: Chemistry

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

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

Solutions

Expert Solution

* 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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