Show that if each class mark X in a frequency distribution having class intervals of equal size c is coded into a corresponding value u according to the relation X = A + cu, where A is a given class...


Show that if each class mark X in a frequency distribution having class intervals of equal size c is coded into a corresponding value u according to the relation X = A + cu, where A is a given class mark, then the standard deviation can be written as



May 26, 2022
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