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Calculate the Measures of Central (Mean, Median and Mode) and the Measures of Variation (Standard Deviation and Variance) of the following grouped data Scores of

Calculate the Measures of Central (Mean, Median and Mode) and the Measures of Variation (Standard Deviation and Variance) of the following grouped data

Scores of Students Frequency 41-50 5 31 -40 21 - 30 12 11 -20 1-10 3 N = 30

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