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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
6.32Â Â Â Â Â Â Â Write and test the following function:
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double stdev(double x[], int n);
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The function returns the standard deviation of a data set of n numbers x0, …, xn–1 defined by the formula
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n – 1
Â
( xi – x)
Â
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s =Â Â Â Â -i-1-=Â Â Â Â 0--------------------
n   1
where x is the mean of the data. This formula says: square each deviation (x[i] - mean); sum those squares; divide that square root by  n-1; take the square root of that sum.
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