"Joe Egginton" wrote :

I never trust anyone that says "the average" of anything. The average is
a very crude measure. I rather be told the standard deviation it gives a
much more clear measure.

To prove my point a little joke: Three hunters were in the forest, they
saw a bear, one of the hunters said," I'll shoot him easy", the bear moved
at the last minute, and the shot went two inches to the left. The second
hunter said,"Bad luck, I'll show you how a proper hunter does it!", He got
his aim, just has he shot he slipped on the wet ground the the shot went
two inches to the right of the bear. The third hunter said," No point in
me taking a shot, on average we've shot the bear!".

And of course there are over 6 billion people on this planet with
above-the-average number of legs.

Philip