How to Find Mean & Standard Deviation of Grouped Data
SOLVED: B- Variance and Standard Deviation of Grouped Data In grouped data, X is the midpoint of the class and f frequency: Formulae for calculating VARIANCE and STANDARD DEVIATION of a POPULATION
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How to Find Mean & Standard Deviation of Grouped Data
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Mean and Standard Deviation of Grouped Data Make a frequency table Compute the midpoint (x) for each class. Count the number of entries in each class (f). - ppt download
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