error variance definition, error variance meaning | English dictionary

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1    a mistake or inaccuracy, as in action or speech  
a typing error     
2    an incorrect belief or wrong judgment  
3    the condition of deviating from accuracy or correctness, as in belief, action, or speech  
he was in error about the train times     
4    deviation from a moral standard; wrongdoing  
he saw the error of his ways     
5      (Maths, statistics)   a measure of the difference between some quantity and an approximation to or estimate of it, often expressed as a percentage  
an error of ±5%     
6      (Statistics)      See       type I error       type II error  
     (C13: from Latin, from errare to err)  
  error-free      adj  

error correction  
      n     (Computing)   the automatic correction of errors in data that arise from missing or distorted digital pulses  
error message  
      n   a message displayed on a visual display unit, printout, etc., indicating that an incorrect instruction has been given to the computer  
error of closure  
      n     (Surveying)   the amount by which a computed, plotted, or observed quantity or position differs from the true or established one, esp. when plotting a closed traverse,   (Also called)    closing error  
rounding error  
      n     (Computing)   an error introduced into a computation by the need to perform rounding  
standard error  
      n     (Statistics)   the estimated standard deviation of a parameter, the value of which is not known exactly  
trial and error  
      n   a method of discovery, solving problems, etc., based on practical experiment and experience rather than on theory  
he learned to cook by trial and error     
type I error  
      n     (Statistics)   the error of rejecting the null hypothesis when it is true, the probability of which is the significance level of a result  
type II error  
      n     (Statistics)   the error of not rejecting the null hypothesis when it is false. The probability of avoiding such an error is the power of the test and is a function of the alternative hypothesis  
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