Originally Posted by
DaveReidUK
It's perfectly possible that the ability distribution is actually skewed, in other words the peak isn't halfway between the two extremes, so that for example there could be a concentration of pilots towards the upper end of the ability scale.
Or, perish the thought, the lower end.
Possible with a small number.
With a sufficient number of thousands of individuals, the distribution always seems to more or less follow the above curve, whatever the criteria, be it body height, fish size, driving or piloting "abilities".
The notion that some professional pilots could not be up to "average" may seem a bit disturbing, and yet we all know some colleagues that are "outstanding". And unfortunately, some others are not as good, so this de facto creates a distribution where some are "above average" and some are below...