2010/5/28 Paul <paul.m...@gmail.com> > Recently found a page that provided data which could be used to produce the > following on the users mailing list. > > 29286 - Unique number of people that have posted to the mailing list > 205089 - Total number of posts > 7 - Average # of posts per user (std dev is 84.4 - which supports a highly > skewed, peaked distribution). > 2756.463 - Kurtosis > 46.0032 - Skew > > [Kurtosis: Higher kurtosis means more of the variance is the result of > infrequent extreme deviations, as opposed to frequent modestly sized > deviations] > [Skew: A positive skew indicates that the tail on the right side is longer > than the left side and the bulk of the values lie to the left of the mean. > A > zero value indicates that the values are relatively evenly distributed on > both sides of the mean, typically but not necessarily implying a symmetric > distribution.] > > # of posts # of people > 1 18969 > 2 4543 > 3 1656 > 4 861 > 5 521 > 6 360 > 7 291 > 8 210 > 9 166 > 10 131 > 11-20 648 > 21-50 459 > 51-100 211 > > 101 260 > > Thought I'd pass it on... Some may find it interesting. > > /paul
Thanks, Paul, the stats were indeed interesting. It would seem that most users post only a few times - to ask a single question and perhaps to further discuss the issue if the answer was not clear, while at the other end we see a significant number of people who devote themselves to helping others. Not unexpected, but nice to get it confirmed.... Henri
