Yes, if gifted are .1% (1%, 2%, 5%, 10%) there would statistically need to be a population of 2000 (200, 100, 40, 20) in your child's age and/or grade and/or cluster to find a second child of your child's similar relative ability.
7,9,5,7,5,9,11,5,6,5,6,13,5,4,10,7,2,5,6,6,11,6,5,8,
6,4,9,11,4,11,4,6,5,6,7,5,4,7,5,4,7,4,8,6,4,5,6,11,14,7
If one used any global norm it would be very difficult for any small class to have a set IQ limit for entry due to the randomness of rare events. I ran a Monte Carlo 50 iterations of 6000 people to see a distribution how many within the population would score above 99.9% level on something. So, in these hypothetic 50 populations of 6000. A cases with as few as 2 occurred, and a case as high as 14 occurred. This simple analysis shows that there are some serious forecasting difficulties planning for highly gifted individuals. Although most populations you get the 4,5,6,7, or 8 that one would expect. A school would also have to plan for exceptional boom years and bust years.
This is a model of any event that is expected to occur at a rate of 1 in 1000.
Oh, and yes I would love to send my daughter to a school to learn to host parties, weddings and the like.
