Khan/khan-exercises — Issue #15862: Standard deviation - No recommended video
Author: KhanBugz
Created: 2012-03-09 23:16:52+00:00
State: open
Labels: firefox, other

For most problems, there is a video to watch if you don't know the subject. I just started the Standard Deviation practice, and there isn't one.

[standard_deviation.html?seed=99&problem=sample](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/standard_deviation.html?seed=99&problem=sample&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/standard_deviation.html?seed=99&problem=sample&debug&activity=%5B%5D)

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