Find the standard deviation of sample data summarized in a frequency distribution table by using the formula
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Find the standard deviation of sample data summarized in a frequency distribution table by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values:
Tar (mg) inNonfilteredCigarettes ? ? ? ? ? ? ? ? ? ? ? ?Frequency10?13..................................................114?17..................................................018?21................................................1522?25..................................................726?29..................................................2
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Standard deviation Where is midpoint is class frequency and is the total numb...View the full answer
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