# Statistics on nm.debian.org don't add up

The "aggregate statistics" section on the nm.debian.org front page
don't make any sense. I've found the times in the "Awaiting DAM
Approval" line questionable, at best (every time I've looked in the
past week or so, the mode waiting time has been 2 days, and an average
of 29 just doesn't seem right either). More noticably and concretely,
the current numbers for "Waiting for AM to Confirm" are impossible:
Count: 7
Mode: 0
Median: 0
Mean: 2
Maximum: 100
So this means that more entries are 0 than any other value, and that
in a sorted list 0 is the middle value. (So at least four people have
been waiting zero days here.) The mean means that the sum of all of
the wait times is ~14 days, modulo rounding error. This in turn means
that it's impossible for any single wait time to be 100 days. (Unless
there's a negative wait time involved, which would solve the
statistical mystery but seems very odd in its own right.)
(If the set of wait times was {0, 0, 0, 0, 0, 0, 100}, it would meet
all of the numbers above, except that the mean wait would be 14 days.
None of the times can be decreased, since you can't have a negative
wait and decreasing the 100 would decrease the maximum.)
Could you please make the wait-time statistics correct and
self-consistent? Thanks...
--
David Maze dmaze@mit.edu http://www.mit.edu/~dmaze/
"Theoretical politics is interesting. Politicking should be illegal."
-- Abra Mitchell

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