The mean is what you make it BoneyDroney.
It could be the mean of flag formation numbers,
It could mean the mean of L-factor formations,
It could be the mean of 1day skip numbers,
It could be the mean of 2 day skip numbers,
It could be the mean of Decades,
It could be the mean of Adjacent numbers,
It could be the mean of Leapfrog numbers,'
It could be the mean of annoying posts by boney.
If i said boney has a mean of 2 posts per day, and boney has not posted in two days, then the standard deviation would lead me to believe boney is about to post something annoying 4 more times.
Since boney does not have a dictionary, lets all help him out with a definition.
Main Entry:arithmetic mean Function:noun Date:1767
: a value that is computed by dividing the sum of a set of terms by the number of terms
a.k.a.
the average
And while everything you said is possible, that doesn't make them probable, nor does it mean that you can average better than the odds dictate. You, of course, can win, but cannot consistently win in the long term. So that means the average will not be better than the odds state.
Now since boney has 2 averge posts per day, and yesterday he posted 4 times, he was able to do better than the odds dictate, and hopefully to keep in line with standard deviation he will go back into his stupor where by according to the standard deviation, we wont have to hear him ramble on for at least four days, whereby he will awake from his stupor and come back with some more enlightening arguments, on average, two of them.