Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.
|
|
|
|
Squares intead Module in standard deviation
Posted:
Oct 12, 2013 12:56 AM
|
|
Why in the formula of standard deviation uses squares instead of simply putting differences within module?
Example:
standard deviation² = Sum[(y-ym)²]/(n-1)
Is not it better this?
standard deviation = Sum[|y-ym|]/(n-1)
|
|
|
|
