Finding Standard Deviation from a Frequency Distribution. In Exercises 3740, find the standard deviation of sample data
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Finding Standard Deviation from a Frequency Distribution. In Exercises 37–40, 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 4 with the original list of data values: (Exercise 37) 11.1 years; (Exercise 38) 9.0 years; (Exercise 39) 13.4; (Exercise 40) 9.7 years.
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Related Book For 
Elementary Statistics Using Excel Pearson New
ISBN: 978-1292041766
5th Edition
Authors: Mario F Triola
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