rbcc

02-07-2011, 12:09 AM

Hi,

I have a quick question, is this a formula for variance?

\Sigma \ X^2 - \frac{(\Sigma \ {X)}^2}{N}}

Thank you!

I have a quick question, is this a formula for variance?

\Sigma \ X^2 - \frac{(\Sigma \ {X)}^2}{N}}

Thank you!