Find the standard deviation of sample data summarized in a frequency distribution table by using the formula
Question:
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: (Exercise 37) 11.1 years; (Exercise 38) 9.0 years; (Exercise 39) 13.4; (Exercise 40) 9.7years. Distribution The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Verbal IQ Score of Subject Exposed to Lead 50-59 60-69 70-79 80-89 90-99 100-109 110-119 120-129 Frequency 4 10 25 43 26
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