> From: Baardwijk, J. van DTO/SLWPD/RZO/BOZO <[EMAIL PROTECTED]>

> > -----Oorspronkelijk bericht-----
> > Van: Alberto Monteiro [mailto:[EMAIL PROTECTED]]

> > >When we look at day of the week, Monday is Kneem's favourite day to
> > >post here: 20.7% of his messages were sent on Mondays. The
percentages
> > >for the various days of the week are:
> > >
> > >Sun    9.0%
> > >Mon   20.7%
> > >Tue    9.9%   <-- can someone explain this dip?
> > >
> > Aha!!! He posts from his job! Then, on Tuesday, he has to work
[because
> > he didn't work on Monday, having spent the whole day writing to
> > brin-l], so he can't post as much as the other days!
> 
> But how can you be absolutely sure he is posting from work -- do you
even
> know he *has* a job? Maybe he is still in college and does not have
classes
> on Monday. He could also be unemployed or work from home. If the
latter, the
> Tuesday dip could be caused by him going to his employer's offices on
> Tuesday.

Agregrate data is OK, but what does the day to day graph show?

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