in the last line of the above, why is the last expression not 2ab sigma xy? why is it just ab when the line above says 2abCov(X,Y)
Follow Math Help Forum on Facebook and Google+
Its just notation. For example
Sorry i miss read you question. It looks like they have a typo.
Last edited by Scopur; December 1st 2012 at 12:45 PM.
View Tag Cloud