So I just written up a prostate cancer paper on how correlations can be different in difference race subsets and why that’s important.  And why is that important? Because you can have different interactions depending on the subgroup you’re in.  For example, the number of designer dresses that Tina has could correlate with how many paintings her cousin, Jane, paints in unjustified dimensions but not in justified dimensions.  How so, you ask? Well …  Intrigued yet?  What?  Oh c’mon!  Okay, I’ll try again another week.  Until then, just imagine you’re Tina in an unjustified dimension and this is your closet…


Nope? Nothing?  Okay, okay, I’ll try something different yet again then … just for you.