Finding the Standard DeviationDate: 8/5/96 at 11:35:0 From: Anonymous Subject: Finding the Standard Deviation What is the formula for calculating the standard deviation? I cannot seem to find it in the database. Thanks. Date: 8/5/96 at 11:56:3 From: Doctor Anthony Subject: Re: Finding the Standard Deviation If you require the s.d. for a population size n, the formula is: sqrt[SIGMA{x^2/n} - m^2] where x takes all values in turn in the population, and m is the mean calculated from SIGMA{x/n}. SIGMA means 'sum of'. -Doctor Anthony, The Math Forum Check out our web site! http://mathforum.org/dr.math/ Date: 8/5/96 at 11:57:12 From: Doctor Paul Subject: Re: Finding the Standard Deviation Standard Deviation is the square root of the variance. -Doctor Paul, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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