its value in the population being sampled. For example, if the sample mean is x-bar, and the population mean is mu, the error is mu – x-bar. Errors are categorized according to their probabilistic nature into the systematic component of error (meaning there is an explanatory factor that can be found to explain it), and the random component of error.
Week #21 – Error
Error is the deviation of an estimated quantity from its true value, or, more precisely,