AHA! I KNEW IT!
So my TA is indeed a dingbat and I'm not silly. This is great news.
The scenario is: The X set is the values of cigarettes smoked by 10 Americans daily, Y is the values of cigarettes smoked by 10 Europeans daily.
The questions were
sumXY (Sum of X times Y)
sumXsumY (Sum of X times Sum of Y)
sumXY - sumXsumY/N over N-1 (I hate math)
"You'll Never Walk Alone"
Originally Posted by tiny
Seconded. Hence forth this is to be the official nomenclature of marker sales. Violators will be violated.
Last edited by StJimmy666; 10-01-2012 at 01:05 PM.