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OpenStudy (anonymous):

help finding standard deviation

OpenStudy (anonymous):

I have been trying to figure this out and for some reason I cant. been working fo hours that may be why. I need the standard deviation of 3ˏ17ˏ18ˏ15ˏ12ˏ21ˏ9

OpenStudy (anonymous):

3,17,18,15,12,21,9

OpenStudy (anonymous):

this might be helpfull http://www.mathsisfun.com/data/standard-deviation.html

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