Khan/khan-exercises — Issue #13710: Variance - pixel
Author: KhanBugz
Created: 2012-02-13 03:57:46+00:00
State: open
Labels: hard, ie8, ie9, win7

Reporter: Master.Rhim@gmail.com

i was not even one pixel away from being profiecent in the variance module and then i got 2 wrong and set me back after working over 40 minutes on it.

[variance.html?seed=31&problem=sample](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/variance.html?seed=31&problem=sample&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/variance.html?seed=31&problem=sample&debug&activity=%5B%5D)

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