Page 37 - Statistics presented by Dr. Sara Ismail Aborass
P. 37

9/8/2023

               Precision                               Accuracy
    Error: Random, deviation from          Error: Systematic, deviation of

              mean value                       mean from true value

    Standard Deviation  Relative SD or CV    Absolute Errors            Relative Errors

                                           =Calculated mean value-  =Absolute error X100
                                                     true value         True value

71

                  Types of Systematic Error

                        Constant           Proportional

72

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