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What do you mean by Statistical Error? Give the difference between Mistake and Error?

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The difference between the actual value of the figure and its approximated value is called statistical error. For example if number of students of a college is 1,255 but in round figures it is written as 1,300, then the difference is called ‗Statistical error‘. In the words of Prof. Connor, ―In statistical sense, „error‟ means the difference between the approximate value and the true or ideal value, accurate determination of which is not possible”.

Difference between Mistake and Error

a)NatureCommitted deliberatelyNot deliberate
b)SourceDue to use of wrong methodDifference between actual and approximate value.
c)       EstimationDifficult to estimateCan be estimated
d)PreventionCan be avoided by carefulnessCannot be avoided easily.
e)    State of        Occurrence                                                                                             Can be  committed  at any stageCreeps in only at the state of collecting, analysis and interpretation. 

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