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What do you understand by measures of central tendency and dispersion in descriptive statistics? What are the different measures of dispersion? The grouped frequency distribution in the table represents masses of a sample of 50 of the people from the data file, “Brain size”. Mass(lbs) 1-2 2-3 3-4 4-5 5-6 6-7 Frequency 8 10 15 9 6 2 Compute mean, standard deviation, variance and coefficient of variation and interpret them.

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