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Mathematics 7 Online
OpenStudy (anonymous):

what is the formula for variance ?

OpenStudy (anonymous):

This will help you, just give it a read; http://www.wikihow.com/Calculate-Variance

OpenStudy (anonymous):

is standard deviation the root of variance ?

OpenStudy (dannyrod2000):

http://prntscr.com/49oybb

OpenStudy (anonymous):

https://www.youtube.com/watch?v=qqOyy_NjflU

OpenStudy (anonymous):

thankyou :)

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